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First implementation of an m4 macro to check python module version

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Yann 2016-09-01 10:08:01 +02:00
commit d12699d395
2 changed files with 56 additions and 0 deletions
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40
m4/python_pyconfigure.m4
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@ -647,3 +647,43 @@ m4_ifnblank([$1], [
])
AS_IF([test "$[pc_cv_python_func_]pc_python_safe_mod[_$2]" = "no"], [$5], [$4])
])# PC_PYTHON_CHECK_FUNC
# PC_PYTHON_CHECK_MODULE_VERSION(LIBRARY, VERSION, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND)
# -------------------------------------------------
# Macro for checking if a Python library with this version is installed
#
AC_DEFUN([PC_PYTHON_CHECK_MODULE_VERSION],
[AC_REQUIRE([PC_PROG_PYTHON])[]dnl
m4_define([pc_python_safe_mod], m4_bpatsubsts($1, [\.], [_]))
AC_CACHE_CHECK([for Python '$1' library version '$2'],
[[pc_cv_python_module_version]pc_python_safe_mod],
[AC_LANG_PUSH(Python)[]dnl
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([dnl
import sys
try:
import $1
except:
version='no'
else:
for vers_attr in ('__version__', 'version', 'version_info'):
if hasattr($1, vers_attr):
version = getattr($1, vers_attr)
break
else:
version = 'unknown'
sys.stdout.write(version)
], [])],
[[pc_cv_python_module_version]pc_python_safe_mod=`./conftest`],
[AC_MSG_FAILURE([failed to run Python program])])
AC_LANG_POP(Python)[]dnl
])
AS_IF([test "x$[pc_cv_python_module_version]pc_python_safe_mod" = "x$2" ],
[$3],
[ AS_IF(
[test "x$[pc_cv_python_module_version]pc_python_safe_mod" = 'unknown'],
AC_MSG_WARN([Unable to fetch version of Python module $1]))
[$4]
])
])# PC_PYTHON_CHECK_MODULE_VERSION