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Commitd1060a8

Browse files
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Merge pull request#11983 from anntzer/builddepchecks
BLD: Simplify version checks for freetype and libpng.
2 parents879b7f0 +923ce72 commitd1060a8

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3 files changed

+28
-73
lines changed

3 files changed

+28
-73
lines changed

‎setupext.py

Lines changed: 10 additions & 73 deletions
Original file line numberDiff line numberDiff line change
@@ -814,6 +814,13 @@ def add_flags(self, ext, add_sources=True):
814814
forxinagg_sources)
815815

816816

817+
# For FreeType2 and libpng, we add a separate checkdep_foo.c source to at the
818+
# top of the extension sources. This file is compiled first and immediately
819+
# aborts the compilation either with "foo.h: No such file or directory" if the
820+
# header is not found, or an appropriate error message if the header indicates
821+
# a too-old version.
822+
823+
817824
classFreeType(SetupPackage):
818825
name="freetype"
819826
pkg_names= {
@@ -825,59 +832,8 @@ class FreeType(SetupPackage):
825832
"windows_url":"http://gnuwin32.sourceforge.net/packages/freetype.htm"
826833
}
827834

828-
defcheck(self):
829-
ifoptions.get('local_freetype'):
830-
return"Using local version for testing"
831-
832-
ifsys.platform=='win32':
833-
try:
834-
check_include_file(get_include_dirs(),'ft2build.h','freetype')
835-
exceptCheckFailed:
836-
check_include_file(get_include_dirs(),os.path.join('freetype2','ft2build.h'),'freetype')
837-
return'Using unknown version found on system.'
838-
839-
status,output=subprocess.getstatusoutput(
840-
"freetype-config --ftversion")
841-
ifstatus==0:
842-
version=output
843-
else:
844-
version=None
845-
846-
# Early versions of freetype grep badly inside freetype-config,
847-
# so catch those cases. (tested with 2.5.3).
848-
ifversionisNoneor'No such file or directory\ngrep:'inversion:
849-
version=self.version_from_header()
850-
851-
# pkg_config returns the libtool version rather than the
852-
# freetype version so we need to explicitly pass the version
853-
# to _check_for_pkg_config
854-
returnself._check_for_pkg_config(
855-
'freetype2','ft2build.h',
856-
min_version='2.3',version=version)
857-
858-
defversion_from_header(self):
859-
version='unknown'
860-
ext=self.get_extension()
861-
ifextisNone:
862-
returnversion
863-
# Return the first version found in the include dirs.
864-
forinclude_dirinext.include_dirs:
865-
header_fname=os.path.join(include_dir,'freetype.h')
866-
ifos.path.exists(header_fname):
867-
major,minor,patch=0,0,0
868-
withopen(header_fname,'r')asfh:
869-
forlineinfh:
870-
ifline.startswith('#define FREETYPE_'):
871-
value=line.rsplit(' ',1)[1].strip()
872-
if'MAJOR'inline:
873-
major=value
874-
elif'MINOR'inline:
875-
minor=value
876-
else:
877-
patch=value
878-
return'.'.join([major,minor,patch])
879-
880835
defadd_flags(self,ext):
836+
ext.sources.insert(0,'src/checkdep_freetype2.c')
881837
ifoptions.get('local_freetype'):
882838
src_path=os.path.join(
883839
'build','freetype-{0}'.format(LOCAL_FREETYPE_VERSION))
@@ -1058,30 +1014,11 @@ class Png(SetupPackage):
10581014
"windows_url":"http://gnuwin32.sourceforge.net/packages/libpng.htm"
10591015
}
10601016

1061-
defcheck(self):
1062-
ifsys.platform=='win32':
1063-
check_include_file(get_include_dirs(),'png.h','png')
1064-
return'Using unknown version found on system.'
1065-
1066-
status,output=subprocess.getstatusoutput("libpng-config --version")
1067-
ifstatus==0:
1068-
version=output
1069-
else:
1070-
version=None
1071-
1072-
try:
1073-
returnself._check_for_pkg_config(
1074-
'libpng','png.h',
1075-
min_version='1.2',version=version)
1076-
exceptCheckFailedase:
1077-
ifhas_include_file(get_include_dirs(),'png.h'):
1078-
returnstr(e)+' Using unknown version found on system.'
1079-
raise
1080-
10811017
defget_extension(self):
10821018
sources= [
1019+
'src/checkdep_libpng.c',
10831020
'src/_png.cpp',
1084-
'src/mplutils.cpp'
1021+
'src/mplutils.cpp',
10851022
]
10861023
ext=make_extension('matplotlib._png',sources)
10871024
pkg_config.setup_extension(

‎src/checkdep_freetype2.c

Lines changed: 13 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,13 @@
1+
#include<ft2build.h>
2+
#includeFT_FREETYPE_H
3+
4+
#defineXSTR(x) STR(x)
5+
#defineSTR(x) #x
6+
7+
#pragma message("Compiling with FreeType version " \
8+
XSTR(FREETYPE_MAJOR) "." XSTR(FREETYPE_MINOR) "." XSTR(FREETYPE_PATCH) ".")
9+
#ifFREETYPE_MAJOR <<16+FREETYPE_MINOR <<8+FREETYPE_PATCH<0x020300
10+
#error "FreeType version 2.3 or higher is required." \
11+
"Consider setting the MPLLOCALFREETYPE environment variable to 1."
12+
#error
13+
#endif

‎src/checkdep_libpng.c

Lines changed: 5 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
1+
#include<png.h>
2+
#pragma message("Compiling with libpng version " PNG_LIBPNG_VER_STRING ".")
3+
#ifPNG_LIBPNG_VER<10200
4+
#error "libpng version 1.2 or higher is required."
5+
#endif

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