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Try to fix python shlib probe for MinGW.

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Per discussion with Andrew Dunstan, it seems there are three peculiarities
of the Python installation on MinGW (or at least, of the instance on
buildfarm member frogmouth).  First, the library name doesn't contain
"2.7" but just "27".  It looks like we can deal with that by consulting
get_config_vars('VERSION') to see whether a dot should be used or not.
Second, the library might be in c:/Windows/System32, analogously to it
possibly being in /usr/lib on Unix-oid platforms.  Third, it's apparently
not standard to use the prefix "lib" on the file name.  This patch will
accept files with or without "lib", but the first part of that may well
be dead code.
This commit is contained in:
Tom Lane 2016-10-05 22:47:23 -04:00
parent 61f9e7ba3c
commit 11c0e743b6
2 changed files with 46 additions and 4 deletions
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25
config/python.m4
View File

@ -88,12 +88,18 @@ then
found_shlib=1
else
# Otherwise, guess the base name of the shlib.
# LDVERSION was added in Python 3.2, before that use $python_version.
# LDVERSION was added in Python 3.2, before that use VERSION,
# or failing that, $python_version from _PGAC_CHECK_PYTHON_DIRS.
python_ldversion=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LDVERSION'))))"`
if test x"${python_ldversion}" != x""; then
ldlibrary="python${python_ldversion}"
else
ldlibrary="python${python_version}"
python_version_var=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('VERSION'))))"`
if test x"${python_version_var}" != x""; then
ldlibrary="python${python_version_var}"
else
ldlibrary="python${python_version}"
fi
fi
# Search for a likely-looking file.
found_shlib=0
@ -124,6 +130,21 @@ else
done
done
fi
# As usual, Windows has its own ideas. c:/Windows/System32 takes the
# place of /usr/lib as a possible default library location, and the
# "lib" prefix might not be there.
if test "$found_shlib" != 1 -a "$PORTNAME" = win32 ; then
for d in "${python_libdir}" "${python_configdir}" c:/Windows/System32
do
for f in "$d/lib${ldlibrary}.dll" "$d/${ldlibrary}.dll" ; do
if test -e "$f"; then
python_libdir="$d"
found_shlib=1
break 2
fi
done
done
fi
fi
if test "$found_shlib" != 1; then
AC_MSG_ERROR([could not find shared library for Python

25
configure vendored
View File

@ -7631,12 +7631,18 @@ then
found_shlib=1
else
# Otherwise, guess the base name of the shlib.
# LDVERSION was added in Python 3.2, before that use $python_version.
# LDVERSION was added in Python 3.2, before that use VERSION,
# or failing that, $python_version from _PGAC_CHECK_PYTHON_DIRS.
python_ldversion=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LDVERSION'))))"`
if test x"${python_ldversion}" != x""; then
ldlibrary="python${python_ldversion}"
else
ldlibrary="python${python_version}"
python_version_var=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('VERSION'))))"`
if test x"${python_version_var}" != x""; then
ldlibrary="python${python_version_var}"
else
ldlibrary="python${python_version}"
fi
fi
# Search for a likely-looking file.
found_shlib=0
@ -7667,6 +7673,21 @@ else
done
done
fi
# As usual, Windows has its own ideas. c:/Windows/System32 takes the
# place of /usr/lib as a possible default library location, and the
# "lib" prefix might not be there.
if test "$found_shlib" != 1 -a "$PORTNAME" = win32 ; then
for d in "${python_libdir}" "${python_configdir}" c:/Windows/System32
do
for f in "$d/lib${ldlibrary}.dll" "$d/${ldlibrary}.dll" ; do
if test -e "$f"; then
python_libdir="$d"
found_shlib=1
break 2
fi
done
done
fi
fi
if test "$found_shlib" != 1; then
as_fn_error $? "could not find shared library for Python