xref: /petsc/config/PETSc/Configure.py (revision 29b3c8a1c1d29fc05018f23f4f087a3ebe1dff6f)
1import config.base
2
3import os
4import sys
5import re
6import pickle
7
8class Configure(config.base.Configure):
9  def __init__(self, framework):
10    config.base.Configure.__init__(self, framework)
11    self.headerPrefix = 'PETSC'
12    self.substPrefix  = 'PETSC'
13    self.installed = 0 # 1 indicates that Configure itself has already compiled and installed PETSc
14    return
15
16  def __str2__(self):
17    desc = []
18    if not self.installed:
19      desc.append('xxx=========================================================================xxx')
20      desc.append(' Configure stage complete. Now build PETSc libraries with:')
21      desc.append('   make PETSC_DIR='+self.petscdir.dir+' PETSC_ARCH='+self.arch.arch+' all')
22      desc.append('xxx=========================================================================xxx')
23    else:
24      desc.append('xxx=========================================================================xxx')
25      desc.append(' Installation complete. You do not need to run make to compile or install the software')
26      desc.append('xxx=========================================================================xxx')
27    return '\n'.join(desc)+'\n'
28
29  def setupHelp(self, help):
30    import nargs
31    help.addArgument('PETSc',  '-prefix=<dir>',                   nargs.Arg(None, '', 'Specifiy location to install PETSc (eg. /usr/local)'))
32    help.addArgument('PETSc',  '-with-prefetch=<bool>',           nargs.ArgBool(None, 1,'Enable checking for prefetch instructions'))
33    help.addArgument('Windows','-with-windows-graphics=<bool>',   nargs.ArgBool(None, 1,'Enable check for Windows Graphics'))
34    help.addArgument('PETSc', '-with-default-arch=<bool>',        nargs.ArgBool(None, 1, 'Allow using the last configured arch without setting PETSC_ARCH'))
35    help.addArgument('PETSc','-with-single-library=<bool>',       nargs.ArgBool(None, 1,'Put all PETSc code into the single -lpetsc library'))
36    help.addArgument('PETSc','-with-fortran-bindings=<bool>',     nargs.ArgBool(None, 1,'Build PETSc fortran bindings in the library and corresponding module files'))
37    help.addArgument('PETSc', '-with-ios=<bool>',              nargs.ArgBool(None, 0, 'Build an iPhone/iPad version of PETSc library'))
38    help.addArgument('PETSc', '-with-xsdk-defaults', nargs.ArgBool(None, 0, 'Set the following as defaults for the xSDK standard: --enable-debug=1, --enable-shared=1, --with-precision=double, --with-index-size=32, locate blas/lapack automatically'))
39    help.addArgument('PETSc', '-with-display=<x11display>',       nargs.Arg(None, '', 'Specifiy DISPLAY env variable for use with matlab test)'))
40    help.addArgument('PETSc', '-with-package-scripts=<pyscripts>',nargs.ArgFileList(None,None,'Specify configure package scripts for user provided packages'))
41    return
42
43  def registerPythonFile(self,filename,directory):
44    ''' Add a python file to the framework and registers its headerprefix, ... externalpackagedir
45        directory is the directory where the file relative to the BuildSystem or config path in python notation with . '''
46    (utilityName, ext) = os.path.splitext(filename)
47    if not utilityName.startswith('.') and not utilityName.startswith('#') and ext == '.py' and not utilityName == '__init__':
48      if directory: directory = directory+'.'
49      utilityObj                             = self.framework.require(directory+utilityName, self)
50      utilityObj.headerPrefix                = self.headerPrefix
51      utilityObj.archProvider                = self.arch
52      utilityObj.languageProvider            = self.languages
53      utilityObj.installDirProvider          = self.installdir
54      utilityObj.externalPackagesDirProvider = self.externalpackagesdir
55      utilityObj.precisionProvider           = self.scalartypes
56      utilityObj.indexProvider               = self.indexTypes
57      setattr(self, utilityName.lower(), utilityObj)
58      return utilityObj
59    return None
60
61  def setupDependencies(self, framework):
62    config.base.Configure.setupDependencies(self, framework)
63    self.programs      = framework.require('config.programs',           self)
64    self.setCompilers  = framework.require('config.setCompilers',       self)
65    self.compilers     = framework.require('config.compilers',          self)
66    self.arch          = framework.require('PETSc.options.arch',        self.setCompilers)
67    self.petscdir      = framework.require('PETSc.options.petscdir',    self.arch)
68    self.installdir    = framework.require('PETSc.options.installDir',  self)
69    self.scalartypes   = framework.require('PETSc.options.scalarTypes', self)
70    self.indexTypes    = framework.require('PETSc.options.indexTypes',  self)
71    self.languages     = framework.require('PETSc.options.languages',   self.setCompilers)
72    self.indexTypes    = framework.require('PETSc.options.indexTypes',  self.compilers)
73    self.compilers     = framework.require('config.compilers',          self)
74    self.types         = framework.require('config.types',              self)
75    self.headers       = framework.require('config.headers',            self)
76    self.functions     = framework.require('config.functions',          self)
77    self.libraries     = framework.require('config.libraries',          self)
78    self.atomics       = framework.require('config.atomics',            self)
79    self.make          = framework.require('config.packages.make',      self)
80    self.blasLapack    = framework.require('config.packages.BlasLapack',self)
81    self.externalpackagesdir = framework.require('PETSc.options.externalpackagesdir',self)
82    self.mpi           = framework.require('config.packages.MPI',self)
83
84    for utility in sorted(os.listdir(os.path.join('config','PETSc','options'))):
85      self.registerPythonFile(utility,'PETSc.options')
86
87    for utility in sorted(os.listdir(os.path.join('config','BuildSystem','config','utilities'))):
88      self.registerPythonFile(utility,'config.utilities')
89
90    for package in sorted(os.listdir(os.path.join('config', 'BuildSystem', 'config', 'packages'))):
91      obj = self.registerPythonFile(package,'config.packages')
92      if obj:
93        obj.archProvider                = self.framework.requireModule(obj.archProvider, obj)
94        obj.languageProvider            = self.framework.requireModule(obj.languageProvider, obj)
95        obj.installDirProvider          = self.framework.requireModule(obj.installDirProvider, obj)
96        obj.externalPackagesDirProvider = self.framework.requireModule(obj.externalPackagesDirProvider, obj)
97        obj.precisionProvider           = self.framework.requireModule(obj.precisionProvider, obj)
98        obj.indexProvider               = self.framework.requireModule(obj.indexProvider, obj)
99
100    # Force blaslapack and opencl to depend on scalarType so precision is set before BlasLapack is built
101    framework.require('PETSc.options.scalarTypes', self.f2cblaslapack)
102    framework.require('PETSc.options.scalarTypes', self.fblaslapack)
103    framework.require('PETSc.options.scalarTypes', self.blaslapack)
104    framework.require('PETSc.options.scalarTypes', self.opencl)
105
106    self.programs.headerPrefix   = self.headerPrefix
107    self.compilers.headerPrefix  = self.headerPrefix
108    self.types.headerPrefix      = self.headerPrefix
109    self.headers.headerPrefix    = self.headerPrefix
110    self.functions.headerPrefix  = self.headerPrefix
111    self.libraries.headerPrefix  = self.headerPrefix
112
113    # Register user provided package scripts
114    if 'with-package-scripts' in self.framework.argDB:
115      for script in self.framework.argDB['with-package-scripts']:
116        if os.path.splitext(script)[1] != '.py':
117          raise RuntimeError('Only python scripts compatible with configure package script format should be specified! Invalid option -with-package-scripts='+script)
118        self.framework.logPrint('User is registering a new package script: '+script)
119        dname,fname = os.path.split(script)
120        if dname: sys.path.append(dname)
121        self.registerPythonFile(fname,'')
122
123    # test for a variety of basic headers and functions
124    headersC = map(lambda name: name+'.h', ['setjmp','dos', 'fcntl', 'float', 'io',  'malloc', 'pwd',  'strings',
125                                            'unistd', 'sys/sysinfo', 'machine/endian', 'sys/param', 'sys/procfs', 'sys/resource',
126                                            'sys/systeminfo', 'sys/times', 'sys/utsname',
127                                            'sys/socket','sys/wait','netinet/in','netdb','Direct','time','Ws2tcpip','sys/types',
128                                            'WindowsX', 'float','ieeefp','stdint','pthread','inttypes','immintrin','zmmintrin'])
129    functions = ['access', '_access', 'clock', 'drand48', 'getcwd', '_getcwd', 'getdomainname', 'gethostname',
130                 'getwd', 'memalign', 'popen', 'PXFGETARG', 'rand', 'getpagesize',
131                 'readlink', 'realpath',  'usleep', 'sleep', '_sleep',
132                 'uname','snprintf','_snprintf','lseek','_lseek','time','fork','stricmp',
133                 'strcasecmp', 'bzero', 'dlopen', 'dlsym', 'dlclose', 'dlerror',
134                 '_set_output_format','_mkdir','socket','gethostbyname']
135    libraries = [(['fpe'], 'handle_sigfpes')]
136    librariessock = [(['socket', 'nsl'], 'socket')]
137    self.headers.headers.extend(headersC)
138    self.functions.functions.extend(functions)
139    self.libraries.libraries.extend(libraries)
140    if not hasattr(self,'socket'):
141      self.libraries.libraries.extend(librariessock)
142    return
143
144  def DumpPkgconfig(self):
145    ''' Create a pkg-config file '''
146    if not os.path.exists(os.path.join(self.petscdir.dir,self.arch.arch,'lib','pkgconfig')):
147      os.makedirs(os.path.join(self.petscdir.dir,self.arch.arch,'lib','pkgconfig'))
148    fd = open(os.path.join(self.petscdir.dir,self.arch.arch,'lib','pkgconfig','PETSc.pc'),'w')
149    cflags_inc = ['-I${includedir}']
150    if self.framework.argDB['prefix']:
151      fd.write('prefix='+self.installdir.dir+'\n')
152    else:
153      fd.write('prefix='+os.path.join(self.petscdir.dir, self.arch.arch)+'\n')
154      cflags_inc.append('-I' + os.path.join(self.petscdir.dir, 'include'))
155    fd.write('exec_prefix=${prefix}\n')
156    fd.write('includedir=${prefix}/include\n')
157    fd.write('libdir=${prefix}/lib\n')
158
159    self.setCompilers.pushLanguage('C')
160    fd.write('ccompiler='+self.setCompilers.getCompiler()+'\n')
161    fd.write('cflags_extra='+self.setCompilers.getCompilerFlags().strip()+'\n')
162    fd.write('cflags_dep='+self.compilers.dependenciesGenerationFlag.get('C','')+'\n')
163    fd.write('ldflag_rpath='+self.setCompilers.CSharedLinkerFlag+'\n')
164    self.setCompilers.popLanguage()
165    if hasattr(self.compilers, 'CXX'):
166      self.setCompilers.pushLanguage('C++')
167      fd.write('cxxcompiler='+self.setCompilers.getCompiler()+'\n')
168      fd.write('cxxflags_extra='+self.setCompilers.getCompilerFlags().strip()+'\n')
169      self.setCompilers.popLanguage()
170    if hasattr(self.compilers, 'FC'):
171      self.setCompilers.pushLanguage('FC')
172      fd.write('fcompiler='+self.setCompilers.getCompiler()+'\n')
173      fd.write('fflags_extra='+self.setCompilers.getCompilerFlags().strip()+'\n')
174      self.setCompilers.popLanguage()
175
176    fd.write('\n')
177    fd.write('Name: PETSc\n')
178    fd.write('Description: Library to solve ODEs and algebraic equations\n')
179    fd.write('Version: %s\n' % self.petscdir.version)
180    fd.write('Cflags: ' + ' '.join([self.setCompilers.CPPFLAGS] + cflags_inc) + '\n')
181    fd.write('Libs: '+self.libraries.toStringNoDupes(['-L${libdir}', self.petsclib], with_rpath=False)+'\n')
182    # Remove RPATH flags from library list.  User can add them using
183    # pkg-config --variable=ldflag_rpath and pkg-config --libs-only-L
184    fd.write('Libs.private: '+self.libraries.toStringNoDupes([f for f in self.packagelibs+self.complibs if not f.startswith(self.setCompilers.CSharedLinkerFlag)], with_rpath=False)+'\n')
185
186    fd.close()
187    return
188
189  def DumpModule(self):
190    ''' Create a module file '''
191    if not os.path.exists(os.path.join(self.petscdir.dir,self.arch.arch,'lib','petsc','conf','modules')):
192      os.makedirs(os.path.join(self.petscdir.dir,self.arch.arch,'lib','petsc','conf','modules'))
193    if not os.path.exists(os.path.join(self.petscdir.dir,self.arch.arch,'lib','petsc','conf','modules','petsc')):
194      os.makedirs(os.path.join(self.petscdir.dir,self.arch.arch,'lib','petsc','conf','modules','petsc'))
195    if self.framework.argDB['prefix']:
196      installdir  = self.installdir.dir
197      installarch = ''
198      installpath = os.path.join(installdir,'bin')
199    else:
200      installdir  = self.petscdir.dir
201      installarch = self.arch.arch
202      installpath = os.path.join(installdir,installarch,'bin')+':'+os.path.join(installdir,'bin')
203    fd = open(os.path.join(self.petscdir.dir,self.arch.arch,'lib','petsc','conf','modules','petsc',self.petscdir.version),'w')
204    fd.write('''\
205#%%Module
206
207proc ModulesHelp { } {
208    puts stderr "This module sets the path and environment variables for petsc-%s"
209    puts stderr "     see https://www.mcs.anl.gov/petsc/ for more information      "
210    puts stderr ""
211}
212module-whatis "PETSc - Portable, Extensible Toolkit for Scientific Computation"
213
214set petsc_dir   "%s"
215set petsc_arch  "%s"
216
217setenv PETSC_ARCH "$petsc_arch"
218setenv PETSC_DIR "$petsc_dir"
219prepend-path PATH "%s"
220''' % (self.petscdir.version, installdir, installarch, installpath))
221    fd.close()
222    return
223
224  def Dump(self):
225    ''' Actually put the values into the configuration files '''
226    # eventually everything between -- should be gone
227    if self.mpi.usingMPIUni:
228      #
229      # Remove any MPI/MPICH include files that may have been put here by previous runs of ./configure
230      self.executeShellCommand('rm -rf  '+os.path.join(self.petscdir.dir,self.arch.arch,'include','mpi*')+' '+os.path.join(self.petscdir.dir,self.arch.arch,'include','opa*'), log = self.log)
231
232    self.setCompilers.pushLanguage('C')
233    compiler = self.setCompilers.getCompiler()
234    if compiler.endswith('mpicc') or compiler.endswith('mpiicc'):
235      try:
236        output   = self.executeShellCommand(compiler + ' -show', log = self.log)[0]
237        compiler = output.split(' ')[0]
238        self.addDefine('MPICC_SHOW','"'+output.strip().replace('\n','\\\\n')+'"')
239      except:
240        self.addDefine('MPICC_SHOW','"Unavailable"')
241    else:
242      self.addDefine('MPICC_SHOW','"Unavailable"')
243    self.setCompilers.popLanguage()
244#-----------------------------------------------------------------------------------------------------
245
246    # Sometimes we need C compiler, even if built with C++
247    self.setCompilers.pushLanguage('C')
248    self.addMakeMacro('CC_FLAGS',self.setCompilers.getCompilerFlags())
249    self.setCompilers.popLanguage()
250
251    # And sometimes we need a C++ compiler even when PETSc is built with C
252    if hasattr(self.compilers, 'CXX'):
253      self.setCompilers.pushLanguage('Cxx')
254      self.addDefine('HAVE_CXX','1')
255      self.addMakeMacro('CXX_FLAGS',self.setCompilers.getCompilerFlags())
256      cxx_linker = self.setCompilers.getLinker()
257      self.addMakeMacro('CXX_LINKER',cxx_linker)
258      self.addMakeMacro('CXX_LINKER_FLAGS',self.setCompilers.getLinkerFlags())
259      self.setCompilers.popLanguage()
260
261    # C preprocessor values
262    self.addMakeMacro('CPP_FLAGS',self.setCompilers.CPPFLAGS)
263
264    # compiler values
265    self.setCompilers.pushLanguage(self.languages.clanguage)
266    self.addMakeMacro('PCC',self.setCompilers.getCompiler())
267    self.addMakeMacro('PCC_FLAGS',self.setCompilers.getCompilerFlags())
268    self.setCompilers.popLanguage()
269    # .o or .obj
270    self.addMakeMacro('CC_SUFFIX','o')
271
272    # executable linker values
273    self.setCompilers.pushLanguage(self.languages.clanguage)
274    pcc_linker = self.setCompilers.getLinker()
275    self.addMakeMacro('PCC_LINKER',pcc_linker)
276    self.addMakeMacro('PCC_LINKER_FLAGS',self.setCompilers.getLinkerFlags())
277    self.setCompilers.popLanguage()
278    # '' for Unix, .exe for Windows
279    self.addMakeMacro('CC_LINKER_SUFFIX','')
280
281    if hasattr(self.compilers, 'FC'):
282      if self.framework.argDB['with-fortran-bindings']:
283        self.addDefine('HAVE_FORTRAN','1')
284      self.setCompilers.pushLanguage('FC')
285      # need FPPFLAGS in config/setCompilers
286      self.addMakeMacro('FPP_FLAGS',self.setCompilers.CPPFLAGS)
287
288      # compiler values
289      self.addMakeMacro('FC_FLAGS',self.setCompilers.getCompilerFlags())
290      self.setCompilers.popLanguage()
291      # .o or .obj
292      self.addMakeMacro('FC_SUFFIX','o')
293
294      # executable linker values
295      self.setCompilers.pushLanguage('FC')
296      self.addMakeMacro('FC_LINKER',self.setCompilers.getLinker())
297      self.addMakeMacro('FC_LINKER_FLAGS',self.setCompilers.getLinkerFlags())
298      # apple requires this shared library linker flag on SOME versions of the os
299      if self.setCompilers.getLinkerFlags().find('-Wl,-commons,use_dylibs') > -1:
300        self.addMakeMacro('DARWIN_COMMONS_USE_DYLIBS',' -Wl,-commons,use_dylibs ')
301      self.setCompilers.popLanguage()
302
303      # F90 Modules
304      if self.setCompilers.fortranModuleIncludeFlag:
305        self.addMakeMacro('FC_MODULE_FLAG', self.setCompilers.fortranModuleIncludeFlag)
306      else: # for non-f90 compilers like g77
307        self.addMakeMacro('FC_MODULE_FLAG', '-I')
308      if self.setCompilers.fortranModuleIncludeFlag:
309        self.addMakeMacro('FC_MODULE_OUTPUT_FLAG', self.setCompilers.fortranModuleOutputFlag)
310    else:
311      self.addMakeMacro('FC','')
312
313    if hasattr(self.compilers, 'CUDAC'):
314      self.setCompilers.pushLanguage('CUDA')
315      self.addMakeMacro('CUDAC_FLAGS',self.setCompilers.getCompilerFlags())
316      self.setCompilers.popLanguage()
317
318    # shared library linker values
319    self.setCompilers.pushLanguage(self.languages.clanguage)
320    # need to fix BuildSystem to collect these separately
321    self.addMakeMacro('SL_LINKER',self.setCompilers.getLinker())
322    self.addMakeMacro('SL_LINKER_FLAGS','${PCC_LINKER_FLAGS}')
323    self.setCompilers.popLanguage()
324    # One of 'a', 'so', 'lib', 'dll', 'dylib' (perhaps others also?) depending on the library generator and architecture
325    # Note: . is not included in this macro, consistent with AR_LIB_SUFFIX
326    if self.setCompilers.sharedLibraryExt == self.setCompilers.AR_LIB_SUFFIX:
327      self.addMakeMacro('SL_LINKER_SUFFIX', '')
328      self.addDefine('SLSUFFIX','""')
329    else:
330      self.addMakeMacro('SL_LINKER_SUFFIX', self.setCompilers.sharedLibraryExt)
331      self.addDefine('SLSUFFIX','"'+self.setCompilers.sharedLibraryExt+'"')
332
333    self.addMakeMacro('SL_LINKER_LIBS','${PETSC_EXTERNAL_LIB_BASIC}')
334
335#-----------------------------------------------------------------------------------------------------
336
337    # CONLY or CPP. We should change the PETSc makefiles to do this better
338    if self.languages.clanguage == 'C': lang = 'CONLY'
339    else: lang = 'CXXONLY'
340    self.addMakeMacro('PETSC_LANGUAGE',lang)
341
342    # real or complex
343    self.addMakeMacro('PETSC_SCALAR',self.scalartypes.scalartype)
344    # double or float
345    self.addMakeMacro('PETSC_PRECISION',self.scalartypes.precision)
346
347    if self.framework.argDB['with-batch']:
348      self.addMakeMacro('PETSC_WITH_BATCH','1')
349
350    # Test for compiler-specific macros that need to be defined.
351    if self.setCompilers.isCrayVector('CC', self.log):
352      self.addDefine('HAVE_CRAY_VECTOR','1')
353
354#-----------------------------------------------------------------------------------------------------
355    if self.functions.haveFunction('gethostbyname') and self.functions.haveFunction('socket') and self.headers.haveHeader('netinet/in.h'):
356      self.addDefine('USE_SOCKET_VIEWER','1')
357      if self.checkCompile('#include <sys/socket.h>','setsockopt(0,SOL_SOCKET,SO_REUSEADDR,0,0)'):
358        self.addDefine('HAVE_SO_REUSEADDR','1')
359
360#-----------------------------------------------------------------------------------------------------
361    # print include and lib for makefiles
362    self.framework.packages.reverse()
363    petscincludes = [os.path.join(self.petscdir.dir,'include'),os.path.join(self.petscdir.dir,self.arch.arch,'include')]
364    petscincludes_install = [os.path.join(self.installdir.dir, 'include')] if self.framework.argDB['prefix'] else petscincludes
365    includes = []
366    self.packagelibs = []
367    for i in self.framework.packages:
368      if not i.required:
369        self.addDefine('HAVE_'+i.PACKAGE.replace('-','_'), 1)  # ONLY list package if it is used directly by PETSc (and not only by another package)
370      if not isinstance(i.lib, list):
371        i.lib = [i.lib]
372      if i.linkedbypetsc: self.packagelibs.extend(i.lib)
373      self.addMakeMacro(i.PACKAGE.replace('-','_')+'_LIB', self.libraries.toStringNoDupes(i.lib))
374      if hasattr(i,'include'):
375        if not isinstance(i.include,list):
376          i.include = [i.include]
377        includes.extend(i.include)
378        self.addMakeMacro(i.PACKAGE.replace('-','_')+'_INCLUDE',self.headers.toStringNoDupes(i.include))
379    if self.framework.argDB['with-single-library']:
380      self.petsclib = '-lpetsc'
381    else:
382      self.petsclib = '-lpetscts -lpetscsnes -lpetscksp -lpetscdm -lpetscmat -lpetscvec -lpetscsys'
383    self.complibs = self.compilers.flibs+self.compilers.cxxlibs+self.compilers.LIBS.split()
384    self.PETSC_WITH_EXTERNAL_LIB = self.libraries.toStringNoDupes(['-L${PETSC_DIR}/${PETSC_ARCH}/lib', self.petsclib]+self.packagelibs+self.complibs)
385    self.PETSC_EXTERNAL_LIB_BASIC = self.libraries.toStringNoDupes(self.packagelibs+self.complibs)
386
387    self.addMakeMacro('PETSC_EXTERNAL_LIB_BASIC',self.PETSC_EXTERNAL_LIB_BASIC)
388    allincludes = petscincludes + includes
389    allincludes_install = petscincludes_install + includes
390    self.PETSC_CC_INCLUDES = self.headers.toStringNoDupes(allincludes)
391    self.PETSC_CC_INCLUDES_INSTALL = self.headers.toStringNoDupes(allincludes_install)
392    self.addMakeMacro('PETSC_CC_INCLUDES',self.PETSC_CC_INCLUDES)
393    self.addMakeMacro('PETSC_CC_INCLUDES_INSTALL', self.PETSC_CC_INCLUDES_INSTALL)
394    if hasattr(self.compilers, 'FC'):
395      def modinc(includes):
396        return includes if self.compilers.fortranIsF90 else []
397      self.addMakeMacro('PETSC_FC_INCLUDES',self.headers.toStringNoDupes(allincludes,modinc(allincludes)))
398      self.addMakeMacro('PETSC_FC_INCLUDES_INSTALL',self.headers.toStringNoDupes(allincludes_install,modinc(allincludes_install)))
399
400    self.addDefine('LIB_DIR','"'+os.path.join(self.installdir.dir,'lib')+'"')
401
402    if self.framework.argDB['with-single-library']:
403      # overrides the values set in conf/variables
404      self.addMakeMacro('LIBNAME','${INSTALL_LIB_DIR}/libpetsc.${AR_LIB_SUFFIX}')
405      self.addMakeMacro('SHLIBS','libpetsc')
406      self.addMakeMacro('PETSC_LIB_BASIC','-lpetsc')
407      self.addMakeMacro('PETSC_KSP_LIB_BASIC','-lpetsc')
408      self.addMakeMacro('PETSC_TS_LIB_BASIC','-lpetsc')
409      self.addMakeMacro('PETSC_TAO_LIB_BASIC','-lpetsc')
410      self.addMakeMacro('PETSC_WITH_EXTERNAL_LIB',self.PETSC_WITH_EXTERNAL_LIB)
411      self.addDefine('USE_SINGLE_LIBRARY', '1')
412      if self.sharedlibraries.useShared:
413        self.addMakeMacro('PETSC_SYS_LIB','${C_SH_LIB_PATH} ${PETSC_WITH_EXTERNAL_LIB}')
414        self.addMakeMacro('PETSC_VEC_LIB','${C_SH_LIB_PATH} ${PETSC_WITH_EXTERNAL_LIB}')
415        self.addMakeMacro('PETSC_MAT_LIB','${C_SH_LIB_PATH} ${PETSC_WITH_EXTERNAL_LIB}')
416        self.addMakeMacro('PETSC_DM_LIB','${C_SH_LIB_PATH} ${PETSC_WITH_EXTERNAL_LIB}')
417        self.addMakeMacro('PETSC_KSP_LIB','${C_SH_LIB_PATH} ${PETSC_WITH_EXTERNAL_LIB}')
418        self.addMakeMacro('PETSC_SNES_LIB','${C_SH_LIB_PATH} ${PETSC_WITH_EXTERNAL_LIB}')
419        self.addMakeMacro('PETSC_TS_LIB','${C_SH_LIB_PATH} ${PETSC_WITH_EXTERNAL_LIB}')
420        self.addMakeMacro('PETSC_TAO_LIB','${C_SH_LIB_PATH} ${PETSC_WITH_EXTERNAL_LIB}')
421        self.addMakeMacro('PETSC_CHARACTERISTIC_LIB','${C_SH_LIB_PATH} ${PETSC_WITH_EXTERNAL_LIB}')
422        self.addMakeMacro('PETSC_LIB','${C_SH_LIB_PATH} ${PETSC_WITH_EXTERNAL_LIB}')
423        self.addMakeMacro('PETSC_CONTRIB','${C_SH_LIB_PATH} ${PETSC_WITH_EXTERNAL_LIB}')
424      else:
425        self.addMakeMacro('PETSC_SYS_LIB','${PETSC_WITH_EXTERNAL_LIB}')
426        self.addMakeMacro('PETSC_VEC_LIB','${PETSC_WITH_EXTERNAL_LIB}')
427        self.addMakeMacro('PETSC_MAT_LIB','${PETSC_WITH_EXTERNAL_LIB}')
428        self.addMakeMacro('PETSC_DM_LIB','${PETSC_WITH_EXTERNAL_LIB}')
429        self.addMakeMacro('PETSC_KSP_LIB','${PETSC_WITH_EXTERNAL_LIB}')
430        self.addMakeMacro('PETSC_SNES_LIB','${PETSC_WITH_EXTERNAL_LIB}')
431        self.addMakeMacro('PETSC_TS_LIB','${PETSC_WITH_EXTERNAL_LIB}')
432        self.addMakeMacro('PETSC_TAO_LIB','${PETSC_WITH_EXTERNAL_LIB}')
433        self.addMakeMacro('PETSC_CHARACTERISTIC_LIB','${PETSC_WITH_EXTERNAL_LIB}')
434        self.addMakeMacro('PETSC_LIB','${PETSC_WITH_EXTERNAL_LIB}')
435        self.addMakeMacro('PETSC_CONTRIB','${PETSC_WITH_EXTERNAL_LIB}')
436
437    if not os.path.exists(os.path.join(self.petscdir.dir,self.arch.arch,'lib')):
438      os.makedirs(os.path.join(self.petscdir.dir,self.arch.arch,'lib'))
439
440# add a makefile endtry for display
441    if self.framework.argDB['with-display']:
442      self.addMakeMacro('DISPLAY',self.framework.argDB['with-display'])
443
444    # add a makefile entry for configure options
445    self.addMakeMacro('CONFIGURE_OPTIONS', self.framework.getOptionsString(['configModules', 'optionsModule']).replace('\"','\\"'))
446    return
447
448  def dumpConfigInfo(self):
449    import time
450    fd = open(os.path.join(self.arch.arch,'include','petscconfiginfo.h'),'w')
451    fd.write('static const char *petscconfigureoptions = "'+self.framework.getOptionsString(['configModules', 'optionsModule']).replace('\"','\\"')+'";\n')
452    fd.close()
453    return
454
455  def dumpMachineInfo(self):
456    import platform
457    import datetime
458    import time
459    import script
460    def escape(s):
461      return s.replace('"',r'\"').replace(r'\ ',r'\\ ')
462    fd = open(os.path.join(self.arch.arch,'include','petscmachineinfo.h'),'w')
463    fd.write('static const char *petscmachineinfo = \"\\n\"\n')
464    fd.write('\"-----------------------------------------\\n\"\n')
465    buildhost = platform.node()
466    if os.environ.get('SOURCE_DATE_EPOCH'):
467      buildhost = "reproducible"
468    buildtime = datetime.datetime.utcfromtimestamp(int(os.environ.get('SOURCE_DATE_EPOCH', time.time())))
469    fd.write('\"Libraries compiled on %s on %s \\n\"\n' % (buildtime, buildhost))
470    fd.write('\"Machine characteristics: %s\\n\"\n' % (platform.platform()))
471    fd.write('\"Using PETSc directory: %s\\n\"\n' % (escape(self.installdir.petscDir)))
472    fd.write('\"Using PETSc arch: %s\\n\"\n' % (escape(self.installdir.petscArch)))
473    fd.write('\"-----------------------------------------\\n\";\n')
474    fd.write('static const char *petsccompilerinfo = \"\\n\"\n')
475    self.setCompilers.pushLanguage(self.languages.clanguage)
476    fd.write('\"Using C compiler: %s %s \\n\"\n' % (escape(self.setCompilers.getCompiler()), escape(self.setCompilers.getCompilerFlags())))
477    self.setCompilers.popLanguage()
478    if hasattr(self.compilers, 'FC'):
479      self.setCompilers.pushLanguage('FC')
480      fd.write('\"Using Fortran compiler: %s %s  %s\\n\"\n' % (escape(self.setCompilers.getCompiler()), escape(self.setCompilers.getCompilerFlags()), escape(self.setCompilers.CPPFLAGS)))
481      self.setCompilers.popLanguage()
482    fd.write('\"-----------------------------------------\\n\";\n')
483    fd.write('static const char *petsccompilerflagsinfo = \"\\n\"\n')
484    fd.write('\"Using include paths: %s\\n\"\n' % (escape(self.PETSC_CC_INCLUDES_INSTALL.replace('${PETSC_DIR}', self.installdir.petscDir))))
485    fd.write('\"-----------------------------------------\\n\";\n')
486    fd.write('static const char *petsclinkerinfo = \"\\n\"\n')
487    self.setCompilers.pushLanguage(self.languages.clanguage)
488    fd.write('\"Using C linker: %s\\n\"\n' % (escape(self.setCompilers.getLinker())))
489    self.setCompilers.popLanguage()
490    if hasattr(self.compilers, 'FC'):
491      self.setCompilers.pushLanguage('FC')
492      fd.write('\"Using Fortran linker: %s\\n\"\n' % (escape(self.setCompilers.getLinker())))
493      self.setCompilers.popLanguage()
494    fd.write('\"Using libraries: %s%s -L%s %s %s\\n\"\n' % (escape(self.setCompilers.CSharedLinkerFlag), escape(os.path.join(self.installdir.petscDir, self.installdir.petscArch, 'lib')), escape(os.path.join(self.installdir.petscDir, self.installdir.petscArch, 'lib')), escape(self.petsclib), escape(self.PETSC_EXTERNAL_LIB_BASIC)))
495    fd.write('\"-----------------------------------------\\n\";\n')
496    fd.close()
497    return
498
499  def configurePrefetch(self):
500    '''Sees if there are any prefetch functions supported'''
501    if config.setCompilers.Configure.isSolaris(self.log) or self.framework.argDB['with-ios'] or not self.framework.argDB['with-prefetch']:
502      self.addDefine('Prefetch(a,b,c)', ' ')
503      return
504    self.pushLanguage(self.languages.clanguage)
505    if self.checkLink('#include <xmmintrin.h>', 'void *v = 0;_mm_prefetch((const char*)v,_MM_HINT_NTA);\n'):
506      # The Intel Intrinsics manual [1] specifies the prototype
507      #
508      #   void _mm_prefetch(char const *a, int sel);
509      #
510      # but other vendors seem to insist on using subtly different
511      # prototypes, including void* for the pointer, and an enum for
512      # sel.  These are both reasonable changes, but negatively impact
513      # portability.
514      #
515      # [1] https://software.intel.com/file/6373
516      self.addDefine('HAVE_XMMINTRIN_H', 1)
517      self.addDefine('Prefetch(a,b,c)', '_mm_prefetch((const char*)(a),(c))')
518      self.addDefine('PREFETCH_HINT_NTA', '_MM_HINT_NTA')
519      self.addDefine('PREFETCH_HINT_T0',  '_MM_HINT_T0')
520      self.addDefine('PREFETCH_HINT_T1',  '_MM_HINT_T1')
521      self.addDefine('PREFETCH_HINT_T2',  '_MM_HINT_T2')
522    elif self.checkLink('#include <xmmintrin.h>', 'void *v = 0;_mm_prefetch(v,_MM_HINT_NTA);\n'):
523      self.addDefine('HAVE_XMMINTRIN_H', 1)
524      self.addDefine('Prefetch(a,b,c)', '_mm_prefetch((const void*)(a),(c))')
525      self.addDefine('PREFETCH_HINT_NTA', '_MM_HINT_NTA')
526      self.addDefine('PREFETCH_HINT_T0',  '_MM_HINT_T0')
527      self.addDefine('PREFETCH_HINT_T1',  '_MM_HINT_T1')
528      self.addDefine('PREFETCH_HINT_T2',  '_MM_HINT_T2')
529    elif self.checkLink('', 'void *v = 0;__builtin_prefetch(v,0,0);\n'):
530      # From GCC docs: void __builtin_prefetch(const void *addr,int rw,int locality)
531      #
532      #   The value of rw is a compile-time constant one or zero; one
533      #   means that the prefetch is preparing for a write to the memory
534      #   address and zero, the default, means that the prefetch is
535      #   preparing for a read. The value locality must be a compile-time
536      #   constant integer between zero and three. A value of zero means
537      #   that the data has no temporal locality, so it need not be left
538      #   in the cache after the access. A value of three means that the
539      #   data has a high degree of temporal locality and should be left
540      #   in all levels of cache possible. Values of one and two mean,
541      #   respectively, a low or moderate degree of temporal locality.
542      #
543      # Here we adopt Intel's x86/x86-64 naming scheme for the locality
544      # hints.  Using macros for these values in necessary since some
545      # compilers require an enum.
546      self.addDefine('Prefetch(a,b,c)', '__builtin_prefetch((a),(b),(c))')
547      self.addDefine('PREFETCH_HINT_NTA', '0')
548      self.addDefine('PREFETCH_HINT_T0',  '3')
549      self.addDefine('PREFETCH_HINT_T1',  '2')
550      self.addDefine('PREFETCH_HINT_T2',  '1')
551    else:
552      self.addDefine('Prefetch(a,b,c)', ' ')
553    self.popLanguage()
554
555  def configureAtoll(self):
556    '''Checks if atoll exists'''
557    if self.checkLink('#define _POSIX_C_SOURCE 200112L\n#include <stdlib.h>','long v = atoll("25")') or self.checkLink ('#include <stdlib.h>','long v = atoll("25")'):
558       self.addDefine('HAVE_ATOLL', '1')
559
560  def configureUnused(self):
561    '''Sees if __attribute((unused)) is supported'''
562    if self.framework.argDB['with-ios']:
563      self.addDefine('UNUSED', ' ')
564      return
565    self.pushLanguage(self.languages.clanguage)
566    if self.checkLink('__attribute((unused)) static int myfunc(__attribute((unused)) void *name){ return 1;}', 'int i = 0;\nint j = myfunc(&i);\ntypedef void* atype;\n__attribute((unused))  atype a;\n'):
567      self.addDefine('UNUSED', '__attribute((unused))')
568    else:
569      self.addDefine('UNUSED', ' ')
570    self.popLanguage()
571
572  def configureIsatty(self):
573    '''Check if the Unix C function isatty() works correctly
574       Actually just assumes it does not work correctly on batch systems'''
575    if not self.framework.argDB['with-batch']:
576      self.addDefine('USE_ISATTY',1)
577
578  def configureDeprecated(self):
579    '''Check if __attribute((deprecated)) is supported'''
580    self.pushLanguage(self.languages.clanguage)
581    ## Recent versions of gcc and clang support __attribute((deprecated("string argument"))), which is very useful, but
582    ## Intel has conspired to make a supremely environment-sensitive compiler.  The Intel compiler looks at the gcc
583    ## executable in the environment to determine the language compatibility that it should attempt to emulate.  Some
584    ## important Cray installations have built PETSc using the Intel compiler, but with a newer gcc module loaded (e.g.,
585    ## 4.7).  Thus at PETSc configure time, the Intel compiler decides to support the string argument, but the gcc
586    ## found in the default user environment is older and does not support the argument.  If GCC and Intel were cool
587    ## like Clang and supported __has_attribute, we could avoid configure tests entirely, but they don't.  And that is
588    ## why we can't have nice things.
589    #
590    # if self.checkCompile("""__attribute((deprecated("Why you shouldn't use myfunc"))) static int myfunc(void) { return 1;}""", ''):
591    #   self.addDefine('DEPRECATED_FUNCTION(why)', '__attribute((deprecated(why)))')
592    #   self.addDefine('DEPRECATED_TYPEDEF(why)', '__attribute((deprecated(why)))')
593    if self.checkCompile("""__attribute((deprecated)) static int myfunc(void) { return 1;}""", ''):
594      self.addDefine('DEPRECATED_FUNCTION(why)', '__attribute((deprecated))')
595      self.addDefine('DEPRECATED_TYPEDEF(why)', '__attribute((deprecated))')
596    else:
597      self.addDefine('DEPRECATED_FUNCTION(why)', ' ')
598      self.addDefine('DEPRECATED_TYPEDEF(why)', ' ')
599    if self.checkCompile("""enum E {oldval __attribute((deprecated)), newval };""", ''):
600      self.addDefine('DEPRECATED_ENUM(why)', '__attribute((deprecated))')
601    else:
602      self.addDefine('DEPRECATED_ENUM(why)', ' ')
603    # I was unable to make a CPP macro that takes the old and new values as seperate arguments and builds the message needed by _Pragma
604    # hence the deprecation message is handled as it is
605    if self.checkCompile('#define TEST _Pragma("GCC warning \"Testing _Pragma\"") value'):
606      self.addDefine('DEPRECATED_MACRO(why)', '_Pragma(why)')
607    else:
608      self.addDefine('DEPRECATED_MACRO(why)', ' ')
609    self.popLanguage()
610
611  def configureAlign(self):
612    '''Check if __attribute(aligned) is supported'''
613    code = '''\
614struct mystruct {int myint;} __attribute((aligned(16)));
615char assert_aligned[(sizeof(struct mystruct)==16)*2-1];
616'''
617    self.pushLanguage(self.languages.clanguage)
618    if self.checkCompile(code):
619      self.addDefine('ATTRIBUTEALIGNED(size)', '__attribute((aligned(size)))')
620      self.addDefine('HAVE_ATTRIBUTEALIGNED', 1)
621    else:
622      self.framework.logPrint('Incorrect attribute(aligned)')
623      self.addDefine('ATTRIBUTEALIGNED(size)', ' ')
624    self.popLanguage()
625    return
626
627  def configureExpect(self):
628    '''Sees if the __builtin_expect directive is supported'''
629    self.pushLanguage(self.languages.clanguage)
630    if self.checkLink('', 'if (__builtin_expect(0,1)) return 1;'):
631      self.addDefine('HAVE_BUILTIN_EXPECT', 1)
632    self.popLanguage()
633
634  def configureFunctionName(self):
635    '''Sees if the compiler supports __func__ or a variant.'''
636    def getFunctionName(lang):
637      name = '"unknown"'
638      self.pushLanguage(lang)
639      for fname in ['__func__','__FUNCTION__','__extension__ __func__']:
640        code = "if ("+fname+"[0] != 'm') return 1;"
641        if self.checkCompile('',code) and self.checkLink('',code):
642          name = fname
643          break
644      self.popLanguage()
645      return name
646    langs = []
647
648    self.addDefine('FUNCTION_NAME_C', getFunctionName('C'))
649    if hasattr(self.compilers, 'CXX'):
650      self.addDefine('FUNCTION_NAME_CXX', getFunctionName('Cxx'))
651
652  def configureIntptrt(self):
653    '''Determine what to use for uintptr_t'''
654    def staticAssertSizeMatchesVoidStar(inc,typename):
655      # The declaration is an error if either array size is negative.
656      # It should be okay to use an int that is too large, but it would be very unlikely for this to be the case
657      return self.checkCompile(inc, ('#define STATIC_ASSERT(cond) char negative_length_if_false[2*(!!(cond))-1]\n'
658                                     + 'STATIC_ASSERT(sizeof(void*) == sizeof(%s));'%typename))
659    self.pushLanguage(self.languages.clanguage)
660    if self.checkCompile('#include <stdint.h>', 'int x; uintptr_t i = (uintptr_t)&x;'):
661      self.addDefine('UINTPTR_T', 'uintptr_t')
662    elif staticAssertSizeMatchesVoidStar('','unsigned long long'):
663      self.addDefine('UINTPTR_T', 'unsigned long long')
664    elif staticAssertSizeMatchesVoidStar('#include <stdlib.h>','size_t') or staticAssertSizeMatchesVoidStar('#include <string.h>', 'size_t'):
665      self.addDefine('UINTPTR_T', 'size_t')
666    elif staticAssertSizeMatchesVoidStar('','unsigned long'):
667      self.addDefine('UINTPTR_T', 'unsigned long')
668    elif staticAssertSizeMatchesVoidStar('','unsigned'):
669      self.addDefine('UINTPTR_T', 'unsigned')
670    else:
671      raise RuntimeError('Could not find any unsigned integer type matching void*')
672    self.popLanguage()
673
674  def configureRTLDDefault(self):
675    if self.checkCompile('#include <dlfcn.h>\n void *ptr =  RTLD_DEFAULT;'):
676      self.addDefine('RTLD_DEFAULT','1')
677    return
678
679  def configureSolaris(self):
680    '''Solaris specific stuff'''
681    if os.path.isdir(os.path.join('/usr','ucblib')):
682      try:
683        flag = getattr(self.setCompilers, self.language[-1]+'SharedLinkerFlag')
684      except AttributeError:
685        flag = None
686      if flag is None:
687        self.compilers.LIBS += ' -L/usr/ucblib'
688      else:
689        self.compilers.LIBS += ' '+flag+'/usr/ucblib'
690    return
691
692  def configureLinux(self):
693    '''Linux specific stuff'''
694    # TODO: Test for this by mallocing an odd number of floats and checking the address
695    self.addDefine('HAVE_DOUBLE_ALIGN_MALLOC', 1)
696    return
697
698  def configureWin32(self):
699    '''Win32 non-cygwin specific stuff'''
700    kernel32=0
701    if self.libraries.add('Kernel32.lib','GetComputerName',prototype='#include <Windows.h>', call='GetComputerName(NULL,NULL);'):
702      self.addDefine('HAVE_WINDOWS_H',1)
703      self.addDefine('HAVE_GETCOMPUTERNAME',1)
704      kernel32=1
705    elif self.libraries.add('kernel32','GetComputerName',prototype='#include <Windows.h>', call='GetComputerName(NULL,NULL);'):
706      self.addDefine('HAVE_WINDOWS_H',1)
707      self.addDefine('HAVE_GETCOMPUTERNAME',1)
708      kernel32=1
709    if kernel32:
710      if self.framework.argDB['with-windows-graphics']:
711        self.addDefine('USE_WINDOWS_GRAPHICS',1)
712      if self.checkLink('#include <Windows.h>','LoadLibrary(0)'):
713        self.addDefine('HAVE_LOADLIBRARY',1)
714      if self.checkLink('#include <Windows.h>','GetProcAddress(0,0)'):
715        self.addDefine('HAVE_GETPROCADDRESS',1)
716      if self.checkLink('#include <Windows.h>','FreeLibrary(0)'):
717        self.addDefine('HAVE_FREELIBRARY',1)
718      if self.checkLink('#include <Windows.h>','GetLastError()'):
719        self.addDefine('HAVE_GETLASTERROR',1)
720      if self.checkLink('#include <Windows.h>','SetLastError(0)'):
721        self.addDefine('HAVE_SETLASTERROR',1)
722      if self.checkLink('#include <Windows.h>\n','QueryPerformanceCounter(0);\n'):
723        self.addDefine('USE_MICROSOFT_TIME',1)
724    if self.libraries.add('Advapi32.lib','GetUserName',prototype='#include <Windows.h>', call='GetUserName(NULL,NULL);'):
725      self.addDefine('HAVE_GET_USER_NAME',1)
726    elif self.libraries.add('advapi32','GetUserName',prototype='#include <Windows.h>', call='GetUserName(NULL,NULL);'):
727      self.addDefine('HAVE_GET_USER_NAME',1)
728
729    if not self.libraries.add('User32.lib','GetDC',prototype='#include <Windows.h>',call='GetDC(0);'):
730      self.libraries.add('user32','GetDC',prototype='#include <Windows.h>',call='GetDC(0);')
731    if not self.libraries.add('Gdi32.lib','CreateCompatibleDC',prototype='#include <Windows.h>',call='CreateCompatibleDC(0);'):
732      self.libraries.add('gdi32','CreateCompatibleDC',prototype='#include <Windows.h>',call='CreateCompatibleDC(0);')
733
734    self.types.check('int32_t', 'int')
735    if not self.checkCompile('#include <sys/types.h>\n','uid_t u;\n'):
736      self.addTypedef('int', 'uid_t')
737      self.addTypedef('int', 'gid_t')
738    if not self.checkLink('#if defined(PETSC_HAVE_UNISTD_H)\n#include <unistd.h>\n#endif\n','int a=R_OK;\n'):
739      self.framework.addDefine('R_OK', '04')
740      self.framework.addDefine('W_OK', '02')
741      self.framework.addDefine('X_OK', '01')
742    if not self.checkLink('#include <sys/stat.h>\n','int a=0;\nif (S_ISDIR(a)){}\n'):
743      self.framework.addDefine('S_ISREG(a)', '(((a)&_S_IFMT) == _S_IFREG)')
744      self.framework.addDefine('S_ISDIR(a)', '(((a)&_S_IFMT) == _S_IFDIR)')
745    if self.checkCompile('#include <Windows.h>\n','LARGE_INTEGER a;\nDWORD b=a.u.HighPart;\n'):
746      self.addDefine('HAVE_LARGE_INTEGER_U',1)
747
748    # Windows requires a Binary file creation flag when creating/opening binary files.  Is a better test in order?
749    if self.checkCompile('#include <Windows.h>\n#include <fcntl.h>\n', 'int flags = O_BINARY;'):
750      self.addDefine('HAVE_O_BINARY',1)
751
752    if self.compilers.CC.find('win32fe') >= 0:
753      self.addDefine('HAVE_WINDOWS_COMPILERS',1)
754      self.addDefine('DIR_SEPARATOR','\'\\\\\'')
755      self.addDefine('REPLACE_DIR_SEPARATOR','\'/\'')
756      self.addDefine('CANNOT_START_DEBUGGER',1)
757      (petscdir,error,status) = self.executeShellCommand('cygpath -w '+self.installdir.petscDir, log = self.log)
758      self.addDefine('DIR','"'+petscdir.replace('\\','\\\\')+'"')
759      (petscdir,error,status) = self.executeShellCommand('cygpath -m '+self.installdir.petscDir, log = self.log)
760      self.addMakeMacro('wPETSC_DIR',petscdir)
761    else:
762      self.addDefine('REPLACE_DIR_SEPARATOR','\'\\\\\'')
763      self.addDefine('DIR_SEPARATOR','\'/\'')
764      self.addDefine('DIR','"'+self.installdir.petscDir+'"')
765      self.addMakeMacro('wPETSC_DIR',self.installdir.petscDir)
766    self.addDefine('ARCH','"'+self.installdir.petscArch+'"')
767    return
768
769#-----------------------------------------------------------------------------------------------------
770  def configureCygwinBrokenPipe(self):
771    '''Cygwin version <= 1.7.18 had issues with pipes and long commands invoked from gnu-make
772    http://cygwin.com/ml/cygwin/2013-05/msg00340.html '''
773    if config.setCompilers.Configure.isCygwin(self.log):
774      import platform
775      import re
776      r=re.compile("([0-9]+).([0-9]+).([0-9]+)")
777      m=r.match(platform.release())
778      major=int(m.group(1))
779      minor=int(m.group(2))
780      subminor=int(m.group(3))
781      if ((major < 1) or (major == 1 and minor < 7) or (major == 1 and minor == 7 and subminor <= 18)):
782        self.addMakeMacro('PETSC_CYGWIN_BROKEN_PIPE','1')
783    return
784
785#-----------------------------------------------------------------------------------------------------
786  def configureDefaultArch(self):
787    conffile = os.path.join('lib','petsc','conf', 'petscvariables')
788    if self.framework.argDB['with-default-arch']:
789      fd = open(conffile, 'w')
790      fd.write('PETSC_ARCH='+self.arch.arch+'\n')
791      fd.write('PETSC_DIR='+self.petscdir.dir+'\n')
792      fd.write('include '+os.path.join('$(PETSC_DIR)','$(PETSC_ARCH)','lib','petsc','conf','petscvariables')+'\n')
793      fd.close()
794      self.framework.actions.addArgument('PETSc', 'Build', 'Set default architecture to '+self.arch.arch+' in '+conffile)
795    elif os.path.isfile(conffile):
796      try:
797        os.unlink(conffile)
798      except:
799        raise RuntimeError('Unable to remove file '+conffile+'. Did a different user create it?')
800    return
801
802#-----------------------------------------------------------------------------------------------------
803  def configureScript(self):
804    '''Output a script in the conf directory which will reproduce the configuration'''
805    import nargs
806    import sys
807    scriptName = os.path.join(self.arch.arch,'lib','petsc','conf', 'reconfigure-'+self.arch.arch+'.py')
808    args = dict([(nargs.Arg.parseArgument(arg)[0], arg) for arg in self.framework.clArgs])
809    if 'with-clean' in args:
810      del args['with-clean']
811    if 'force' in args:
812      del args['force']
813    if 'configModules' in args:
814      if nargs.Arg.parseArgument(args['configModules'])[1] == 'PETSc.Configure':
815        del args['configModules']
816    if 'optionsModule' in args:
817      if nargs.Arg.parseArgument(args['optionsModule'])[1] == 'config.compilerOptions':
818        del args['optionsModule']
819    if not 'PETSC_ARCH' in args:
820      args['PETSC_ARCH'] = 'PETSC_ARCH='+str(self.arch.arch)
821    f = open(scriptName, 'w')
822    f.write('#!'+sys.executable+'\n')
823    f.write('if __name__ == \'__main__\':\n')
824    f.write('  import sys\n')
825    f.write('  import os\n')
826    f.write('  sys.path.insert(0, os.path.abspath(\'config\'))\n')
827    f.write('  import configure\n')
828    # pretty print repr(args.values())
829    f.write('  configure_options = [\n')
830    for itm in sorted(args.values()):
831      f.write('    \''+str(itm)+'\',\n')
832    f.write('  ]\n')
833    f.write('  configure.petsc_configure(configure_options)\n')
834    f.close()
835    try:
836      os.chmod(scriptName, 0o775)
837    except OSError as e:
838      self.framework.logPrint('Unable to make reconfigure script executable:\n'+str(e))
839    self.framework.actions.addArgument('PETSc', 'File creation', 'Created '+scriptName+' for automatic reconfiguration')
840    return
841
842  def configureInstall(self):
843    '''Setup the directories for installation'''
844    if self.framework.argDB['prefix']:
845      self.addMakeRule('print_mesg_after_build','',['-@echo "Now to install the libraries do:"',\
846                                              '-@echo "'+self.installdir.installSudo+'make PETSC_DIR=${PETSC_DIR} PETSC_ARCH=${PETSC_ARCH} install"',\
847                                              '-@echo "========================================="'])
848    else:
849      self.addMakeRule('print_mesg_after_build','',['-@echo "Now to check if the libraries are working do:"',\
850                                              '-@echo "make PETSC_DIR=${PETSC_DIR} PETSC_ARCH=${PETSC_ARCH} check"',\
851                                              '-@echo "========================================="'])
852      return
853
854  def configureGCOV(self):
855    if self.framework.argDB['with-gcov']:
856      self.addDefine('USE_GCOV','1')
857    return
858
859  def postProcessPackages(self):
860    postPackages=[]
861    for i in self.framework.packages:
862      if hasattr(i,'postProcess'): postPackages.append(i)
863    if postPackages:
864      # ctetgen needs petsc conf files. so attempt to create them early
865      self.framework.dumpConfFiles()
866      # tacky fix for dependency of Aluimia on Pflotran; requested via petsc-dev Matt provide a correct fix
867      for i in postPackages:
868        if i.name.upper() in ['PFLOTRAN']:
869          i.postProcess()
870          postPackages.remove(i)
871      for i in postPackages: i.postProcess()
872      for i in postPackages:
873        if i.installedpetsc:
874          self.installed = 1
875          break
876    return
877
878  def configure(self):
879    if 'package-prefix-hash' in self.argDB:
880      # turn off prefix if it was only used to for installing external packages.
881      self.framework.argDB['prefix'] = ''
882      self.dir = os.path.abspath(os.path.join(self.petscdir.dir, self.arch.arch))
883      self.installdir.dir = self.dir
884      self.installdir.petscDir = self.petscdir.dir
885      self.petscDir = self.petscdir.dir
886      self.petscArch = self.arch.arch
887      self.addMakeMacro('PREFIXDIR',self.dir)
888      self.confDir = os.path.abspath(os.path.join(self.petscdir.dir, self.arch.arch))
889
890    if not os.path.samefile(self.petscdir.dir, os.getcwd()):
891      raise RuntimeError('Wrong PETSC_DIR option specified: '+str(self.petscdir.dir) + '\n  Configure invoked in: '+os.path.realpath(os.getcwd()))
892    if self.framework.argDB['prefix'] and os.path.isdir(self.framework.argDB['prefix']) and os.path.samefile(self.framework.argDB['prefix'],self.petscdir.dir):
893      raise RuntimeError('Incorrect option --prefix='+self.framework.argDB['prefix']+' specified. It cannot be same as PETSC_DIR!')
894    if self.framework.argDB['prefix'] and self.framework.argDB['prefix'].find(' ') > -1:
895      raise RuntimeError('Your --prefix '+self.framework.argDB['prefix']+' has spaces in it; this is not allowed.\n Use a --prefix that does not have spaces in it')
896    if self.framework.argDB['prefix'] and os.path.isdir(self.framework.argDB['prefix']) and os.path.samefile(self.framework.argDB['prefix'],os.path.join(self.petscdir.dir,self.arch.arch)):
897      raise RuntimeError('Incorrect option --prefix='+self.framework.argDB['prefix']+' specified. It cannot be same as PETSC_DIR/PETSC_ARCH!')
898    self.framework.header          = os.path.join(self.arch.arch,'include','petscconf.h')
899    self.framework.cHeader         = os.path.join(self.arch.arch,'include','petscfix.h')
900    self.framework.pkgheader       = os.path.join(self.arch.arch,'include','petscpkg_version.h')
901    self.framework.makeMacroHeader = os.path.join(self.arch.arch,'lib','petsc','conf','petscvariables')
902    self.framework.makeRuleHeader  = os.path.join(self.arch.arch,'lib','petsc','conf','petscrules')
903    if self.libraries.math is None:
904      raise RuntimeError('PETSc requires a functional math library. Please send configure.log to petsc-maint@mcs.anl.gov.')
905    if self.languages.clanguage == 'Cxx' and not hasattr(self.compilers, 'CXX'):
906      raise RuntimeError('Cannot set C language to C++ without a functional C++ compiler.')
907    self.executeTest(self.configureRTLDDefault)
908    self.executeTest(self.configurePrefetch)
909    self.executeTest(self.configureUnused)
910    self.executeTest(self.configureDeprecated)
911    self.executeTest(self.configureIsatty)
912    self.executeTest(self.configureExpect);
913    self.executeTest(self.configureAlign);
914    self.executeTest(self.configureFunctionName);
915    self.executeTest(self.configureIntptrt);
916    self.executeTest(self.configureSolaris)
917    self.executeTest(self.configureLinux)
918    self.executeTest(self.configureWin32)
919    self.executeTest(self.configureCygwinBrokenPipe)
920    self.executeTest(self.configureDefaultArch)
921    self.executeTest(self.configureScript)
922    self.executeTest(self.configureInstall)
923    self.executeTest(self.configureGCOV)
924    self.executeTest(self.configureAtoll)
925
926    self.Dump()
927    self.dumpConfigInfo()
928    self.dumpMachineInfo()
929    # need to save the current state of BuildSystem so that postProcess() packages can read it in and perhaps run make install
930    self.framework.storeSubstitutions(self.framework.argDB)
931    self.framework.argDB['configureCache'] = pickle.dumps(self.framework)
932    self.framework.argDB.save(force = True)
933    self.DumpPkgconfig()
934    self.DumpModule()
935    self.postProcessPackages()
936    self.framework.log.write('================================================================================\n')
937    self.logClear()
938    return
939