1933707f3SsthenAC_DEFUN([AC_PYTHON_DEVEL],[ 2933707f3Ssthen # 3933707f3Ssthen # Allow the use of a (user set) custom python version 4933707f3Ssthen # 5933707f3Ssthen AC_ARG_VAR([PYTHON_VERSION],[The installed Python 6933707f3Ssthen version to use, for example '2.3'. This string 7933707f3Ssthen will be appended to the Python interpreter 8933707f3Ssthen canonical name.]) 9933707f3Ssthen 10933707f3Ssthen AC_PATH_PROG([PYTHON],[python[$PYTHON_VERSION]]) 11933707f3Ssthen if test -z "$PYTHON"; then 12*98bc733bSsthen AC_MSG_ERROR([Cannot find 'python$PYTHON_VERSION' in your system path. You can use the environment variable 'PYTHON_VERSION=version_number' for an explicit version.]) 13933707f3Ssthen PYTHON_VERSION="" 14933707f3Ssthen fi 15933707f3Ssthen 16933707f3Ssthen if test -z "$PYTHON_VERSION"; then 1798f3ca02Sbrad PYTHON_VERSION=`$PYTHON -c "import sys; \ 1898f3ca02Sbrad print(sys.version.split()[[0]])"` 19933707f3Ssthen fi 208b7325afSsthen # calculate the version number components. 218b7325afSsthen [ 228b7325afSsthen v="$PYTHON_VERSION" 238b7325afSsthen PYTHON_VERSION_MAJOR=`echo $v | sed 's/[^0-9].*//'` 248b7325afSsthen if test -z "$PYTHON_VERSION_MAJOR"; then PYTHON_VERSION_MAJOR="0"; fi 258b7325afSsthen v=`echo $v | sed -e 's/^[0-9]*$//' -e 's/[0-9]*[^0-9]//'` 268b7325afSsthen PYTHON_VERSION_MINOR=`echo $v | sed 's/[^0-9].*//'` 278b7325afSsthen if test -z "$PYTHON_VERSION_MINOR"; then PYTHON_VERSION_MINOR="0"; fi 288b7325afSsthen v=`echo $v | sed -e 's/^[0-9]*$//' -e 's/[0-9]*[^0-9]//'` 298b7325afSsthen PYTHON_VERSION_PATCH=`echo $v | sed 's/[^0-9].*//'` 308b7325afSsthen if test -z "$PYTHON_VERSION_PATCH"; then PYTHON_VERSION_PATCH="0"; fi 318b7325afSsthen ] 32933707f3Ssthen 338b7325afSsthen # For some systems, sysconfig exists, but has the wrong paths, 348b7325afSsthen # on Debian 10, for python 2.7 and 3.7. So, we check the version, 358b7325afSsthen # and for older versions try distutils.sysconfig first. For newer 368b7325afSsthen # versions>=3.10, where distutils.sysconfig is deprecated, use 378b7325afSsthen # sysconfig first and then attempt the other one. 388b7325afSsthen py_distutils_first="no" 398b7325afSsthen if test $PYTHON_VERSION_MAJOR -lt 3; then 408b7325afSsthen py_distutils_first="yes" 418b7325afSsthen fi 428b7325afSsthen if test $PYTHON_VERSION_MAJOR -eq 3 -a $PYTHON_VERSION_MINOR -lt 10; then 438b7325afSsthen py_distutils_first="yes" 448b7325afSsthen fi 458b7325afSsthen 468b7325afSsthen # Check if you have the first module 478b7325afSsthen if test "$py_distutils_first" = "yes"; then m="distutils"; else m="sysconfig"; fi 488b7325afSsthen sysconfig_module="" 498b7325afSsthen AC_MSG_CHECKING([for the $m Python module]) 508b7325afSsthen if ac_modulecheck_result1=`$PYTHON -c "import $m" 2>&1`; then 510bdb4f62Ssthen AC_MSG_RESULT([yes]) 528b7325afSsthen sysconfig_module="$m" 530bdb4f62Ssthen else 540bdb4f62Ssthen AC_MSG_RESULT([no]) 558b7325afSsthen fi 560bdb4f62Ssthen 578b7325afSsthen # if not found, try the other one. 588b7325afSsthen if test -z "$sysconfig_module"; then 598b7325afSsthen if test "$py_distutils_first" = "yes"; then m2="sysconfig"; else m2="distutils"; fi 608b7325afSsthen AC_MSG_CHECKING([for the $m2 Python module]) 618b7325afSsthen if ac_modulecheck_result2=`$PYTHON -c "import $m2" 2>&1`; then 62933707f3Ssthen AC_MSG_RESULT([yes]) 638b7325afSsthen sysconfig_module="$m2" 64933707f3Ssthen else 65933707f3Ssthen AC_MSG_RESULT([no]) 668b7325afSsthen AC_MSG_ERROR([cannot import Python module "$m", or "$m2". 678b7325afSsthen Please check your Python installation. The errors are: 688b7325afSsthen $m 698b7325afSsthen $ac_modulecheck_result1 708b7325afSsthen $m2 718b7325afSsthen $ac_modulecheck_result2]) 72933707f3Ssthen PYTHON_VERSION="" 73933707f3Ssthen fi 740bdb4f62Ssthen fi 758b7325afSsthen if test "$sysconfig_module" = "distutils"; then sysconfig_module="distutils.sysconfig"; fi 760bdb4f62Ssthen 77933707f3Ssthen # 78933707f3Ssthen # Check for Python include path 79933707f3Ssthen # 80933707f3Ssthen AC_MSG_CHECKING([for Python include path]) 81933707f3Ssthen if test -z "$PYTHON_CPPFLAGS"; then 820bdb4f62Ssthen if test "$sysconfig_module" = "sysconfig"; then 830bdb4f62Ssthen python_path=`$PYTHON -c 'import sysconfig; \ 840bdb4f62Ssthen print(sysconfig.get_path("include"));'` 850bdb4f62Ssthen else 86933707f3Ssthen python_path=`$PYTHON -c "import distutils.sysconfig; \ 8798f3ca02Sbrad print(distutils.sysconfig.get_python_inc());"` 880bdb4f62Ssthen fi 89933707f3Ssthen if test -n "${python_path}"; then 90933707f3Ssthen python_path="-I$python_path" 91933707f3Ssthen fi 92933707f3Ssthen PYTHON_CPPFLAGS=$python_path 93933707f3Ssthen fi 94933707f3Ssthen AC_MSG_RESULT([$PYTHON_CPPFLAGS]) 95933707f3Ssthen AC_SUBST([PYTHON_CPPFLAGS]) 96933707f3Ssthen 97933707f3Ssthen # 98933707f3Ssthen # Check for Python library path 99933707f3Ssthen # 100933707f3Ssthen AC_MSG_CHECKING([for Python library path]) 101933707f3Ssthen if test -z "$PYTHON_LDFLAGS"; then 1020bdb4f62Ssthen PYTHON_LDFLAGS=`$PYTHON -c "from $sysconfig_module import *; \ 10377079be7Ssthen print('-L'+get_config_var('LIBDIR')+' -L'+get_config_var('LIBDEST')+' '+get_config_var('BLDLIBRARY'));"` 104933707f3Ssthen fi 105933707f3Ssthen AC_MSG_RESULT([$PYTHON_LDFLAGS]) 106933707f3Ssthen AC_SUBST([PYTHON_LDFLAGS]) 107933707f3Ssthen 108a3167c07Ssthen if test -z "$PYTHON_LIBDIR"; then 1090bdb4f62Ssthen PYTHON_LIBDIR=`$PYTHON -c "from $sysconfig_module import *; \ 110a3167c07Ssthen print(get_config_var('LIBDIR'));"` 111a3167c07Ssthen fi 112a3167c07Ssthen 113933707f3Ssthen # 114933707f3Ssthen # Check for site packages 115933707f3Ssthen # 116933707f3Ssthen AC_MSG_CHECKING([for Python site-packages path]) 117933707f3Ssthen if test -z "$PYTHON_SITE_PKG"; then 1180bdb4f62Ssthen if test "$sysconfig_module" = "sysconfig"; then 1190bdb4f62Ssthen PYTHON_SITE_PKG=`$PYTHON -c 'import sysconfig; \ 1200bdb4f62Ssthen print(sysconfig.get_path("platlib"));'` 1210bdb4f62Ssthen else 122933707f3Ssthen PYTHON_SITE_PKG=`$PYTHON -c "import distutils.sysconfig; \ 12398f3ca02Sbrad print(distutils.sysconfig.get_python_lib(1,0));"` 124933707f3Ssthen fi 1250bdb4f62Ssthen fi 126933707f3Ssthen AC_MSG_RESULT([$PYTHON_SITE_PKG]) 127933707f3Ssthen AC_SUBST([PYTHON_SITE_PKG]) 128933707f3Ssthen 129933707f3Ssthen # 130933707f3Ssthen # final check to see if everything compiles alright 131933707f3Ssthen # 132933707f3Ssthen AC_MSG_CHECKING([consistency of all components of python development environment]) 133933707f3Ssthen AC_LANG_PUSH([C]) 134933707f3Ssthen # save current global flags 1353dcb24b8Ssthen ac_save_LIBS="$LIBS" 1363dcb24b8Ssthen ac_save_CPPFLAGS="$CPPFLAGS" 1373dcb24b8Ssthen 1383dcb24b8Ssthen LIBS="$LIBS $PYTHON_LDFLAGS" 1393dcb24b8Ssthen CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS" 1409982a05dSsthen AC_LINK_IFELSE([AC_LANG_PROGRAM([[ 141933707f3Ssthen #include <Python.h> 1429982a05dSsthen ]],[[ 143933707f3Ssthen Py_Initialize(); 1449982a05dSsthen ]])],[pythonexists=yes],[pythonexists=no]) 145933707f3Ssthen 146933707f3Ssthen AC_MSG_RESULT([$pythonexists]) 147933707f3Ssthen 148933707f3Ssthen if test ! "$pythonexists" = "yes"; then 149933707f3Ssthen AC_MSG_ERROR([ 150933707f3Ssthen Could not link test program to Python. Maybe the main Python library has been 151933707f3Ssthen installed in some non-standard library path. If so, pass it to configure, 152933707f3Ssthen via the LDFLAGS environment variable. 153933707f3Ssthen Example: ./configure LDFLAGS="-L/usr/non-standard-path/python/lib" 154933707f3Ssthen ============================================================================ 155933707f3Ssthen ERROR! 156933707f3Ssthen You probably have to install the development version of the Python package 157933707f3Ssthen for your distribution. The exact name of this package varies among them. 158933707f3Ssthen ============================================================================ 159933707f3Ssthen ]) 160933707f3Ssthen PYTHON_VERSION="" 161933707f3Ssthen fi 162933707f3Ssthen AC_LANG_POP 163933707f3Ssthen # turn back to default flags 164933707f3Ssthen CPPFLAGS="$ac_save_CPPFLAGS" 165933707f3Ssthen LIBS="$ac_save_LIBS" 166933707f3Ssthen 167933707f3Ssthen # 168933707f3Ssthen # all done! 169933707f3Ssthen # 170933707f3Ssthen]) 171933707f3Ssthen 172