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authorDoug Evans <dje@google.com>2010-05-27 03:40:45 +0000
committerDoug Evans <dje@google.com>2010-05-27 03:40:45 +0000
commit0c4a40633c767da2c7659a3f460cf1e8e3dd3a5c (patch)
tree5e04abc4cc89fd32c6532d5d7bdd654af37b4c45 /gdb/configure.ac
parentec685c5ecafd5bf8876d332a0eb17f206c8d733a (diff)
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Allow python to find its files if moved from original location.
* acinclude.m4 (GDB_AC_DEFINE_RELOCATABLE): New function. (GDB_AC_WITH_DIR): Call it. * configure.ac: Define WITH_PYTHON_PATH if we can find the python installation directory. * config.in: Regenerate. * configure: Regenerate. * defs.h (python_libdir): Declare. * main.c (python_libdir): Define. (captured_main): Initialize python_libdir. * python/python.c (_initialize_python): #ifdef WITH_PYTHON_PATH, call Py_SetProgramName to make sure python can find its libraries and modules.
Diffstat (limited to 'gdb/configure.ac')
-rw-r--r--gdb/configure.ac64
1 files changed, 55 insertions, 9 deletions
diff --git a/gdb/configure.ac b/gdb/configure.ac
index fb9b470..70608af 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -616,8 +616,40 @@ AC_DEFUN([AC_TRY_LIBPYTHON],
AC_MSG_RESULT([${found_usable_python}])
])
+dnl There are several different values for --with-python:
+dnl
+dnl no - Don't include python support.
+dnl yes - Include python support, error if it's missing.
+dnl If we find python in $PATH, use it to fetch configure options,
+dnl otherwise assume the compiler can find it with no help from us.
+dnl Python 2.6, 2.5, and then 2.4 are tried in turn.
+dnl auto - Same as "yes", but if python is missing from the system,
+dnl fall back to "no".
+dnl /path/to/python/exec-prefix -
+dnl Use the python located in this directory.
+dnl If /path/to/python/exec-prefix/bin/python exists, use it to find
+dnl the compilation parameters. Otherwise use
+dnl -I/path/to/python/exec-prefix/include,
+dnl -L/path/to/python/exec-prefix/lib.
+dnl Python 2.6, 2.5, and then 2.4 are tried in turn.
+dnl NOTE: This case is historical. It is what was done for 7.0/7.1
+dnl but is deprecated.
+dnl /path/to/python/executable -
+dnl Run python-config.py with this version of python to fetch the
+dnl compilation parameters.
+dnl NOTE: This needn't be the real python executable.
+dnl In a cross-compilation scenario (build != host), this could be
+dnl a shell script that provides what python-config.py provides for
+dnl --ldflags, --includes, --exec-prefix.
+dnl python-executable -
+dnl Find python-executable in $PATH, and then handle the same as
+dnl /path/to/python/executable.
+dnl
+dnl If a python program is specified, it is used to run python-config.py and
+dnl is passed --ldflags, --includes, --exec-prefix.
+
AC_ARG_WITH(python,
- AS_HELP_STRING([--with-python], [include python support (auto/yes/no/<path>)]),
+ AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
[], [with_python=auto])
AC_MSG_CHECKING([whether to use python])
AC_MSG_RESULT([$with_python])
@@ -626,23 +658,23 @@ if test "${with_python}" = no; then
AC_MSG_WARN([python support disabled; some features may be unavailable.])
have_libpython=no
else
- have_python_config=no
case "${with_python}" in
/*)
if test -d ${with_python}; then
# Assume the python binary is ${with_python}/bin/python.
- python_prefix=${with_python}
python_prog="${with_python}/bin/python"
+ python_prefix=
if test ! -x ${python_prog}; then
# Fall back to gdb 7.0/7.1 behaviour.
python_prog=missing
+ python_prefix=${with_python}
fi
elif test -x ${with_python}; then
# While we can't run python compiled for $host (unless host == build),
# the user could write a script that provides the needed information,
# so we support that.
- python_prefix=
python_prog=${with_python}
+ python_prefix=
else
AC_ERROR(invalid value for --with-python)
fi
@@ -692,6 +724,10 @@ else
if test $? != 0; then
AC_ERROR(failure running python-config --ldflags)
fi
+ python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
+ if test $? != 0; then
+ AC_ERROR(failure running python-config --exec-prefix)
+ fi
have_python_config=yes
else
# Fall back to gdb 7.0/7.1 behaviour.
@@ -702,6 +738,7 @@ else
python_includes="-I${python_prefix}/include"
python_libs="-L${python_prefix}/lib"
fi
+ have_python_config=no
fi
# Having "/pythonX.Y" in the include path is awkward.
@@ -711,7 +748,7 @@ else
# path of the, umm, include file. So strip away this part of the
# output of python-config --includes.
python_includes=`echo "${python_includes} " \
- | sed -e 's,/python[[0-9]]*[[.]][[0-9]]* , ,g'`
+ | sed -e 's,/python[[0-9]]*[[.]][[0-9]]* , ,g'`
# If we have python-config, only try the configuration it provides.
# Otherwise fallback on the old way of trying different versions of
@@ -720,13 +757,16 @@ else
have_libpython=no
if test "${have_python_config}" = yes; then
python_version=`echo " ${python_libs} " \
- | sed -e 's,^.* -l\(python[[0-9]]*[[.]][[0-9]]*\) .*$,\1,'`
- if test "${python_version}" != ""; then
+ | sed -e 's,^.* -l\(python[[0-9]]*[[.]][[0-9]]*\) .*$,\1,'`
+ case "${python_version}" in
+ python*)
AC_TRY_LIBPYTHON(${python_version}, have_libpython,
${python_includes}, ${python_libs})
- else
+ ;;
+ *)
AC_MSG_ERROR([unable to determine python version from ${python_libs}])
- fi
+ ;;
+ esac
else
if test "${have_libpython}" = no; then
AC_TRY_LIBPYTHON(python2.6, have_libpython,
@@ -761,6 +801,12 @@ else
AC_MSG_ERROR([no usable python found at ${with_python}])
;;
esac
+ else
+ if test -n "${python_prefix}"; then
+ AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
+ [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
+ GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
+ fi
fi
fi