Huh, we do need to look in $python_configdir for the Python shlib.

Debian does it that way, for no doubt what seems to them a good reason.
Thanks to Aidan Van Dyk for confirmation.

diff --git a/config/python.m4 b/config/python.m4
index 108d52cb07713763abce2d3ae5f637a34c556809..20f5e46a32a56bff6335c850fa20d4ed41290501 100644 (file)
--- a/config/python.m4
+++ b/config/python.m4
@@ -67,10 +67,12 @@ AC_SUBST(python_includespec)[]dnl
 # directory name and LDLIBRARY is the file name of the shlib.  But in older
 # installations LDLIBRARY is frequently a useless path fragment, and it's also
 # possible that the shlib is in a standard library directory such as /usr/lib
-# so that LIBDIR is of no interest.  We must also check that what we found is
-# a shared library not a plain library, which we do by checking its extension.
-# (We used to rely on Py_ENABLE_SHARED, but that only tells us that a shlib
-# exists, not that we found it.)
+# so that LIBDIR is irrelevant.  Also, some packagers put the .so symlink for
+# the shlib in ${python_configdir} even though Python itself never does.
+# We must also check that what we found is a shared library not a plain
+# library, which we do by checking its extension.  (We used to rely on
+# Py_ENABLE_SHARED, but that only tells us that a shlib exists, not that
+# we found it.)
 AC_DEFUN([PGAC_CHECK_PYTHON_EMBED_SETUP],
 [AC_REQUIRE([_PGAC_CHECK_PYTHON_DIRS])
 AC_MSG_CHECKING([how to link an embedded Python application])
@@ -94,7 +96,8 @@ else
        fi
        # Search for a likely-looking file.
        found_shlib=0
-       for d in "${python_libdir}" /usr/lib64 /usr/lib; do
+       for d in "${python_libdir}" "${python_configdir}" /usr/lib64 /usr/lib
+       do
                for e in .so .dll .dylib .sl; do
                        if test -e "$d/lib${ldlibrary}$e"; then
                                python_libdir="$d"

diff --git a/configure b/configure
index 7bb8f8b1c657f719af6f24a30a0d7c5a87fab059..ef3526853cff73b1c2ab70859ff707a85da866e8 100755 (executable)
--- a/configure
+++ b/configure
@@ -7639,7 +7639,8 @@ else
        fi
        # Search for a likely-looking file.
        found_shlib=0
-       for d in "${python_libdir}" /usr/lib64 /usr/lib; do
+       for d in "${python_libdir}" "${python_configdir}" /usr/lib64 /usr/lib
+       do
                for e in .so .dll .dylib .sl; do
                        if test -e "$d/lib${ldlibrary}$e"; then
                                python_libdir="$d"