diff options
Diffstat (limited to 'm4/python.m4')
| -rw-r--r-- | m4/python.m4 | 550 |
1 files changed, 550 insertions, 0 deletions
diff --git a/m4/python.m4 b/m4/python.m4 new file mode 100644 index 00000000..de6b38b9 --- /dev/null +++ b/m4/python.m4 @@ -0,0 +1,550 @@ +# Copyright 2012 Brandon Invergo <brandon@invergo.net> +# +# Copying and distribution of this file, with or without modification, +# are permitted in any medium without royalty provided the copyright +# notice and this notice are preserved. This file is offered as-is, +# without any warranty. + +# Many of these macros were adapted from ones written by Andrew Dalke +# and James Henstridge and are included with the Automake utility +# under the following copyright terms: +# +# Copyright (C) 1999-2012 Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# Table of Contents: +# +# 1. Language selection +# and routines to produce programs in a given language. +# +# 2. Producing programs in a given language. +# +# 3. Looking for a compiler +# And possibly the associated preprocessor. +# +# 4. Looking for specific libs & functionality + + +## ----------------------- ## +## 1. Language selection. ## +## ----------------------- ## + + +# AC_LANG(Python) +# --------------- +AC_LANG_DEFINE([Python], [py], [PY], [PYTHON], [], +[ac_ext=py +ac_compile='chmod +x conftest.$ac_ext >&AS_MESSAGE_LOG_FD' +ac_link='chmod +x conftest.$ac_ext && cp conftest.$ac_ext conftest >&AS_MESSAGE_LOG_FD' +]) + + +# AC_LANG_PYTHON +# -------------- +AU_DEFUN([AC_LANG_PYTHON], [AC_LANG(Python)]) + + +## ----------------------- ## +## 2. Producing programs. ## +## ----------------------- ## + + +# AC_LANG_PROGRAM(Python)([PROLOGUE], [BODY]) +# ------------------------------------------- +m4_define([AC_LANG_PROGRAM(Python)], [dnl +@%:@!$PYTHON +$1 +m4_if([$2], [], [], [dnl +if __name__ == '__main__': +$2])]) + + +# _AC_LANG_IO_PROGRAM(Python) +# --------------------------- +# Produce source that performs I/O. +m4_define([_AC_LANG_IO_PROGRAM(Python)], +[AC_LANG_PROGRAM([dnl +import sys +try: + h = open('conftest.out') +except: + sys.exit(1) +else: + close(h) + sys.exit(0) +], [])]) + + +# _AC_LANG_CALL(Python)([PROLOGUE], [FUNCTION]) +# --------------------- +# Produce source that calls FUNCTION +m4_define([_AC_LANG_CALL(Python)], +[AC_LANG_PROGRAM([$1], [$2])]) + + + +## -------------------------------------------- ## +## 3. Looking for Compilers and Interpreters. ## +## -------------------------------------------- ## + + +AC_DEFUN([AC_LANG_COMPILER(Python)], +[AC_REQUIRE([AC_PROG_PYTHON])]) + + +# AC_PROG_PYTHON(PROG-TO-CHECK-FOR) +# --------------------------------- +# Find a Python interpreter. Python versions prior to 2.0 are not +# supported. (2.0 was released on October 16, 2000). +AC_DEFUN([AC_PROG_PYTHON], +[AC_ARG_VAR([PYTHON], [the Python interpreter]) +m4_define_default([_PC_PYTHON_INTERPRETER_LIST], + [python python3 python3.2 python3.1 python3.0 python2 python2.7 dnl + python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0]) +m4_ifval([$1], + [AC_PATH_PROGS(PYTHON, [$1 _PC_PYTHON_INTERPRETER_LIST])], + [AC_PATH_PROGS(PYTHON, [_PC_PYTHON_INTERPRETER_LIST])]) +]) + + +# PC_PYTHON_PROG_PYTHON_CONFIG(PROG-TO-CHECK-FOR) +# ---------------------------------------------- +# Find the python-config program +AC_DEFUN([PC_PYTHON_PROG_PYTHON_CONFIG], +[AC_REQUIRE([AC_PROG_PYTHON])[]dnl +AC_ARG_VAR([PYTHON_CONFIG], [the Python-config program]) +m4_define([_PYTHON_BASENAME], [`basename $PYTHON`]) +m4_ifval([$1], + [AC_PATH_PROGS(PYTHON_CONFIG, [$1 _PYTHON_BASENAME-config])], + [AC_PATH_PROG(PYTHON_CONFIG, _PYTHON_BASENAME-config)]) +]) # PC_PYTHON_PROG_PYTHON_CONFIG + + +# PC_PYTHON_VERIFY_VERSION(PYTHON-PROGRAM, VERSION, [ACTION-IF-TRUE], [ACTION-IF-NOT-FOUND]) +# --------------------------------------------------------------------------- +# Run ACTION-IF-TRUE if the Python interpreter PROG has version >= VERSION. +# Run ACTION-IF-FALSE otherwise. +# This test uses sys.hexversion instead of the string equivalent (first +# word of sys.version), in order to cope with versions such as 2.2c1. +# This supports Python 2.0 or higher. (2.0 was released on October 16, 2000). +AC_DEFUN([PC_PYTHON_VERIFY_VERSION], +[AC_REQUIRE([AC_PROG_PYTHON])[]dnl +m4_define([pc_python_safe_ver], m4_bpatsubsts($2, [\.], [_])) +AC_CACHE_CHECK([if Python >= '$2'], + [[pc_cv_python_min_version_]pc_python_safe_ver], + [AC_LANG_PUSH(Python)[]dnl + AC_RUN_IFELSE( + [AC_LANG_PROGRAM([dnl +import sys +], [dnl + # split strings by '.' and convert to numeric. Append some zeros + # because we need at least 4 digits for the hex conversion. + # map returns an iterator in Python 3.0 and a list in 2.x + minver = list(map(int, '$2'.split('.'))) + [[0, 0, 0]] + minverhex = 0 + # xrange is not present in Python 3.0 and range returns an iterator + for i in list(range(4)): + minverhex = (minverhex << 8) + minver[[i]] + sys.exit(sys.hexversion < minverhex) +])], + [[pc_cv_python_min_version_]pc_python_safe_ver="yes"], + [[pc_cv_python_min_version_]pc_python_safe_ver="no"]) + AC_LANG_POP(Python)[]dnl + ]) +AS_IF([test "$[pc_cv_python_min_version_]pc_python_safe_ver" = "no"], [$4], [$3]) +])# PC_PYTHON_VERIFY_VERSION + + +# PC_PYTHON_CHECK_VERSION +# ----------------------- +# Query Python for its version number. Getting [:3] seems to be +# the best way to do this; it's what "site.py" does in the standard +# library. +AC_DEFUN([PC_PYTHON_CHECK_VERSION], +[AC_REQUIRE([AC_PROG_PYTHON])[]dnl +AC_CACHE_CHECK([for $1 version], + [pc_cv_python_version], + [AC_LANG_PUSH(Python)[]dnl + AC_LANG_CONFTEST([ + AC_LANG_PROGRAM([dnl +import sys +], [dnl + sys.stdout.write(sys.version[[:3]]) +])]) + pc_cv_python_version=`$PYTHON conftest.py` + AC_LANG_POP(Python)[]dnl + ]) +AC_SUBST([PYTHON_VERSION], [$pc_cv_python_version]) +])# PC_PYTHON_CHECK_VERSION + + +# PC_PYTHON_CHECK_PREFIX +# ---------------------- +# Use the value of $prefix for the corresponding value of +# PYTHON_PREFIX. This is made a distinct variable so it can be +# overridden if need be. However, general consensus is that you +# shouldn't need this ability. +AC_DEFUN([PC_PYTHON_CHECK_PREFIX], +[AC_REQUIRE([PC_PYTHON_PROG_PYTHON_CONFIG])[]dnl +AC_CACHE_CHECK([for Python prefix], [pc_cv_python_prefix], +[if test -x "$PYTHON_CONFIG"; then + pc_cv_python_prefix=`$PYTHON_CONFIG --prefix 2>> AS_MESSAGE_LOG_FD` +else + AC_LANG_PUSH(Python)[]dnl + pc_cv_python_prefix=AC_LANG_CONFTEST([AC_LANG_PROGRAM([dnl +import sys +], [dnl + sys.exit(sys.prefix) +])]) + AC_LANG_POP(Python)[]dnl +fi]) +AC_SUBST([PYTHON_PREFIX], [$pc_cv_python_prefix])]) + + +# PC_PYTHON_CHECK_EXEC_PREFIX +# -------------------------- +# Like above, but for $exec_prefix +AC_DEFUN([PC_PYTHON_CHECK_EXEC_PREFIX], +[AC_REQUIRE([PC_PYTHON_PROG_PYTHON_CONFIG])[]dnl +AC_CACHE_CHECK([for Python exec-prefix], [pc_cv_python_exec_prefix], +[if test -x "$PYTHON_CONFIG"; then + pc_cv_python_exec_prefix=`$PYTHON_CONFIG --exec-prefix 2>> AS_MESSAGE_LOG_FD` +else + AC_LANG_PUSH(Python)[]dnl + pc_cv_python_exec_prefix=AC_LANG_CONFTEST([AC_LANG_PROGRAM([dnl +import sys +], [dnl + sys.exit(sys.exec_prefix) +])]) + AC_LANG_POP(Python)[]dnl +fi +]) +AC_SUBST([PYTHON_EXEC_PREFIX], [$pc_cv_python_exec_prefix])]) + + +# PC_PYTHON_CHECK_INCLUDES +# ------------------------ +# Find the Python header file include flags (ie +# '-I/usr/include/python') +AC_DEFUN([PC_PYTHON_CHECK_INCLUDES], +[AC_REQUIRE([PC_PYTHON_PROG_PYTHON_CONFIG])[]dnl +AC_CACHE_CHECK([for Python includes], [pc_cv_python_includes], +[if test -x "$PYTHON_CONFIG"; then + pc_cv_python_includes=`$PYTHON_CONFIG --includes 2>> AS_MESSAGE_LOG_FD` +else + pc_cv_python_includes="[-I$includedir/$_PYTHON_BASENAME]m4_ifdef(PYTHON_ABI_FLAGS, + PYTHON_ABI_FLAGS,)" +fi +]) +AC_SUBST([PYTHON_INCLUDES], [$pc_cv_python_includes])]) + + +# PC_PYTHON_CHECK_HEADERS([ACTION-IF-PRESENT], [ACTION-IF-ABSENT]) +# ----------------------- +# Check for the presence and usability of Python.h +AC_DEFUN([PC_PYTHON_CHECK_HEADERS], +[AC_REQUIRE([PC_PYTHON_CHECK_INCLUDES])[]dnl +pc_cflags_store=$CPPFLAGS +CPPFLAGS="$CFLAGS $PYTHON_INCLUDES" +AC_CHECK_HEADER([Python.h], [$1], [$2]) +CPPFLAGS=$pc_cflags_store +]) + + +# PC_PYTHON_CHECK_LIBS +# -------------------- +# Find the Python lib flags (ie '-lpython') +AC_DEFUN([PC_PYTHON_CHECK_LIBS], +[AC_REQUIRE([PC_PYTHON_PROG_PYTHON_CONFIG])[]dnl +AC_CACHE_CHECK([for Python libs], [pc_cv_python_libs], +[if test -x "$PYTHON_CONFIG"; then + pc_cv_python_libs=`$PYTHON_CONFIG --libs 2>> AS_MESSAGE_LOG_FD` +else + pc_cv_python_libs="[-l$_PYTHON_BASENAME]m4_ifdef(PYTHON_ABI_FLAGS, PYTHON_ABI_FLAGS,)" +fi +]) +AC_SUBST([PYTHON_LIBS], [$pc_cv_python_libs])]) + + +# PC_PYTHON_TEST_LIBS(LIBRARY-FUNCTION, [ACTION-IF-PRESENT], [ACTION-IF-ABSENT]) +# ------------------- +# Verify that the Python libs can be loaded +AC_DEFUN([PC_PYTHON_TEST_LIBS], +[AC_REQUIRE([PC_PYTHON_CHECK_LIBS])[]dnl +pc_libflags_store=$LIBS +for lflag in $PYTHON_LIBS; do + case $lflag in + -lpython*@:}@ + LIBS="$LIBS $lflag" + pc_libpython=`echo $lflag | sed -e 's/^-l//'` + ;; + *@:}@;; + esac +done +AC_CHECK_LIB([$pc_libpython], [$1], [$2], [$3])]) + + +# PC_PYTHON_CHECK_CFLAGS +# ---------------------- +# Find the Python CFLAGS +AC_DEFUN([PC_PYTHON_CHECK_CFLAGS], +[AC_REQUIRE([PC_PYTHON_PROG_PYTHON_CONFIG])[]dnl +AC_CACHE_CHECK([for Python CFLAGS], [pc_cv_python_cflags], +[if test -x "$PYTHON_CONFIG"; then + pc_cv_python_cflags=`$PYTHON_CONFIG --cflags 2>> AS_MESSAGE_LOG_FD` +else + pc_cv_python_cflags= +fi +]) +AC_SUBST([PYTHON_CFLAGS], [$pc_cv_python_cflags])]) + + +# PC_PYTHON_CHECK_LDFLAGS +# ----------------------- +# Find the Python LDFLAGS +AC_DEFUN([PC_PYTHON_CHECK_LDFLAGS], +[AC_REQUIRE([PC_PYTHON_PROG_PYTHON_CONFIG])[]dnl +AC_CACHE_CHECK([for Python LDFLAGS], [pc_cv_python_ldflags], +[if test -x "$PYTHON_CONFIG"; then + pc_cv_python_ldflags=`$PYTHON_CONFIG --ldflags 2>> AS_MESSAGE_LOG_FD` +else + pc_cv_python_ldflags= +fi +]) +AC_SUBST([PYTHON_LDFLAGS], [$pc_cv_python_ldflags])]) + + +# PC_PYTHON_CHECK_EXTENSION_SUFFIX +# -------------------------------- +# Find the Python extension suffix (i.e. '.cpython-32.so') +AC_DEFUN([PC_PYTHON_CHECK_EXTENSION_SUFFIX], +[AC_REQUIRE([PC_PYTHON_PROG_PYTHON_CONFIG])[]dnl +AC_CACHE_CHECK([for Python extension suffix], [pc_cv_python_extension_suffix], +[if test -x "$PYTHON_CONFIG"; then + pc_cv_python_extension_suffix=`$PYTHON_CONFIG --extension-suffix 2>> AS_MESSAGE_LOG_FD` +else + pc_cv_python_extension_suffix= +fi +]) +AC_SUBST([PYTHON_EXTENSION_SUFFIX], [$pc_cv_python_extension_suffix])]) + + +# PC_PYTHON_CHECK_ABI_FLAGS +# ------------------------- +# Find the Python ABI flags +AC_DEFUN([PC_PYTHON_CHECK_ABI_FLAGS], +[AC_REQUIRE([PC_PYTHON_PROG_PYTHON_CONFIG])[]dnl +AC_CACHE_CHECK([for Python ABI flags], [pc_cv_python_abi_flags], +[if test -x "$PYTHON_CONFIG"; then + pc_cv_python_abi_flags=`$PYTHON_CONFIG --abiflags 2>> AS_MESSAGE_LOG_FD` +else + pc_cv_python_abi_flags= +fi +]) +AC_SUBST([PYTHON_ABI_FLAGS], [$pc_cv_python_abi_flags])]) + + +# PC_PYTHON_CHECK_PLATFORM +# ------------------------ +# At times (like when building shared libraries) you may want +# to know which OS platform Python thinks this is. +AC_DEFUN([PC_PYTHON_CHECK_PLATFORM], +[AC_REQUIRE([AC_PROG_PYTHON])[]dnl +AC_CACHE_CHECK([for Python platform], + [pc_cv_python_platform], + [AC_LANG_PUSH(Python)[]dnl + AC_LANG_CONFTEST([ + AC_LANG_PROGRAM([dnl +import sys +], [dnl + sys.stdout.write(sys.platform) +])]) + pc_cv_python_platform=`$PYTHON conftest.py` + AC_LANG_POP(Python)[]dnl + ]) +AC_SUBST([PYTHON_PLATFORM], [$pc_cv_python_platform]) +]) + + +# PC_PYTHON_CHECK_SITE_DIR +# --------------------- +# The directory to which new libraries are installed (i.e. the +# "site-packages" directory. +AC_DEFUN([PC_PYTHON_CHECK_SITE_DIR], +[AC_REQUIRE([AC_PROG_PYTHON])AC_REQUIRE([PC_PYTHON_CHECK_PREFIX])[]dnl +AC_CACHE_CHECK([for Python site-packages directory], + [pc_cv_python_site_dir], + [AC_LANG_PUSH(Python)[]dnl + if test "x$prefix" = xNONE + then + pc_py_prefix=$ac_default_prefix + else + pc_py_prefix=$prefix + fi + AC_LANG_CONFTEST([ + AC_LANG_PROGRAM([dnl +import sys +try: + import sysconfig +except: + from distutils import sysconfig + sitedir = sysconfig.get_python_lib(False, False, prefix='$pc_py_prefix') +else: + sitedir = sysconfig.get_path('purelib', vars={'base':'$pc_py_prefix'}) +], [dnl + sys.stdout.write(sitedir) +])]) + pc_cv_python_site_dir=`$PYTHON conftest.py` + AC_LANG_POP(Python)[]dnl + case $pc_cv_python_site_dir in + $pc_py_prefix*) + pc__strip_prefix=`echo "$pc_py_prefix" | sed 's|.|.|g'` + pc_cv_python_site_dir=`echo "$pc_cv_python_site_dir" | sed "s,^$pc__strip_prefix/,,"` + ;; + *) + case $pc_py_prefix in + /usr|/System*) ;; + *) + pc_cv_python_site_dir=lib/python$PYTHON_VERSION/site-packages + ;; + esac + ;; + esac + ]) +AC_SUBST([pythondir], [\${prefix}/$pc_cv_python_site_dir])])# PC_PYTHON_CHECK_SITE_DIR +]) + +# PC_PYTHON_SITE_PACKAGE_DIR +# -------------------------- +# $PACKAGE directory under PYTHON_SITE_DIR +AC_DEFUN([PC_PYTHON_SITE_PACKAGE_DIR], +[AC_REQUIRE([PC_PYTHON_CHECK_SITE_DIR])[]dnl +AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE])]) + + +# PC_PYTHON_CHECK_EXEC_DIR +# ------------------------ +# directory for installing python extension modules (shared libraries) +AC_DEFUN([PC_PYTHON_CHECK_EXEC_DIR], +[AC_REQUIRE([AC_PROG_PYTHON])AC_REQUIRE([PC_PYTHON_CHECK_EXEC_PREFIX])[]dnl + AC_CACHE_CHECK([for Python extension module directory], + [pc_cv_python_exec_dir], + [AC_LANG_PUSH(Python)[]dnl + if test "x$pc_cv_python_exec_prefix" = xNONE + then + pc_py_exec_prefix=$pc_cv_python_prefix + else + pc_py_exec_prefix=$pc_cv_python_exec_prefix + fi + AC_LANG_CONFTEST([ + AC_LANG_PROGRAM([dnl +import sys +try: + import sysconfig +except: + from distutils import sysconfig + sitedir = sysconfig.get_python_lib(True, False, prefix='$pc_py_exec_prefix') +else: + sitedir = sysconfig.get_path('platlib', vars={'platbase':'$pc_py_exec_prefix'}) +], [dnl + sys.stdout.write(sitedir) +])]) + pc_cv_python_exec_dir=`$PYTHON conftest.py` + AC_LANG_POP(Python)[]dnl + case $pc_cv_python_exec_dir in + $pc_py_exec_prefix*) + pc__strip_prefix=`echo "$pc_py_exec_prefix" | sed 's|.|.|g'` + pc_cv_python_exec_dir=`echo "$pc_cv_python_exec_dir" | sed "s,^$pc__strip_prefix/,,"` + ;; + *) + case $pc_py_exec_prefix in + /usr|/System*) ;; + *) + pc_cv_python_exec_dir=lib/python$PYTHON_VERSION/site-packages + ;; + esac + ;; + esac + ]) +AC_SUBST([pyexecdir], [\${exec_prefix}/$pc_cv_python_pyexecdir])]) #PY_PYTHON_CHECK_EXEC_LIB_DIR +]) + +# PC_PYTHON_EXEC_PACKAGE_DIR +# -------------------------- +# $PACKAGE directory under PYTHON_SITE_DIR +AC_DEFUN([PC_PYTHON_EXEC_PACKAGE_DIR], +[AC_REQUIRE([PC_PYTHON_CHECK_EXEC_DIR])[]dnl +AC_SUBST([pkgpyexecdir], [\${pyexecdir}/$PACKAGE])]) + + +## -------------------------------------------- ## +## 4. Looking for specific libs & functionality ## +## -------------------------------------------- ## + + +# PC_PYTHON_CHECK_MODULE(LIBRARY, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) +# ---------------------------------------------------------------------- +# Macro for checking if a Python library is installed +AC_DEFUN([PC_PYTHON_CHECK_MODULE], +[AC_REQUIRE([AC_PROG_PYTHON])[]dnl +m4_define([pc_python_safe_mod], m4_bpatsubsts($1, [\.], [_])) +AC_CACHE_CHECK([for Python '$1' library], + [[pc_cv_python_module_]pc_python_safe_mod], + [AC_LANG_PUSH(Python)[]dnl + AC_RUN_IFELSE( + [AC_LANG_PROGRAM([dnl +import sys +try: + import $1 +except: + sys.exit(1) +else: + sys.exit(0) +], [])], + [[pc_cv_python_module_]pc_python_safe_mod="yes"], + [[pc_cv_python_module_]pc_python_safe_mod="no"]) + AC_LANG_POP(Python)[]dnl + ]) +AS_IF([test "$[pc_cv_python_module_]pc_python_safe_mod" = "no"], [$3], [$2]) +])# PC_PYTHON_CHECK_MODULE + + +# PC_PYTHON_CHECK_FUNC([LIBRARY], FUNCTION, ARGS, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) +# --------------------------------------------------------------------------------------- +# Check to see if a given function call, optionally from a module, can +# be successfully called +AC_DEFUN([PC_PYTHON_CHECK_FUNC], +[AC_REQUIRE([AC_PROG_PYTHON])[]dnl +m4_define([pc_python_safe_mod], m4_bpatsubsts($1, [\.], [_])) +AC_CACHE_CHECK([for Python m4_ifnblank($1, '$1.$2()', '$2()') function], + [[pc_cv_python_func_]pc_python_safe_mod[_$2]], + [AC_LANG_PUSH(Python)[]dnl + AC_RUN_IFELSE( + [AC_LANG_PROGRAM([dnl +import sys +m4_ifnblank([$1], [dnl +try: + import $1 +except: + sys.exit(1) +], [])], +[ +m4_ifnblank([$1], [ + try: + $1.$2($3)], [ + try: + $2($3)]) + except: + sys.exit(1) + else: + sys.exit(0) +])], + [[pc_cv_python_func_]pc_python_safe_mod[_$2]="yes"], + [[pc_cv_python_func_]pc_python_safe_mod[_$2]="no"]) + AC_LANG_POP(Python)[]dnl + ]) +AS_IF([test "$[pc_cv_python_func_]pc_python_safe_mod[_$2]" = "no"], [$5], [$4]) +])# PC_PYTHON_CHECK_FUNC |