gentoo-overlay/dev-libs/volume_key/files/volume_key-0.3.9-find_python.patch

From 67fbdb6133b6d37548250514eeaf8a4e239e4768 Mon Sep 17 00:00:00 2001
From: Lars Wendler <polynomial-c@gentoo.org>
Date: Mon, 22 May 2017 14:29:44 +0200
Subject: [PATCH] Use pkgconfig to find python

otherwise linkage and include of python fails if python is not in
default (python$(PYTHON_VERSION)) location.
---
 Makefile.am  | 4 ++--
 configure.ac | 8 +++++++-
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 4569bbf..445a64c 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -20,7 +20,7 @@ ACLOCAL_AMFLAGS = -I m4
 AM_CPPFLAGS = $(blkid_CFLAGS) $(glib_CFLAGS) $(GPGME_CFLAGS) \
 	$(libcryptsetup_CFLAGS) $(nss_CFLAGS)
 LOCALEDIR_CPPFLAGS = -DLOCALEDIR='"$(localedir)"'
-PYTHON_CPPFLAGS = -I/usr/include/python$(PYTHON_VERSION)
+PYTHON_CPPFLAGS = $(PYTHON_CFLAGS)
 
 ## Targets
 SUBDIRS = po
@@ -65,7 +65,7 @@ lib_libvolume_key_la_LIBADD = $(blkid_LIBS) $(glib_LIBS) $(GPGME_LIBS) \
 python__volume_key_la_SOURCES = python/volume_key_wrap.c
 python__volume_key_la_CPPFLAGS = $(AM_CPPFLAGS) $(PYTHON_CPPFLAGS)
 python__volume_key_la_LDFLAGS = -module -avoid-version $(glib_LIBS)
-python__volume_key_la_LIBADD = lib/libvolume_key.la -lpython$(PYTHON_VERSION) \
+python__volume_key_la_LIBADD = lib/libvolume_key.la $(PYTHON_LIBS) \
 	$(glib_LIBS) $(nss_LIBS)
 
 src_volume_key_SOURCES = src/volume_key.c
diff --git a/configure.ac b/configure.ac
index 5dbb326..71e407e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -28,7 +28,13 @@ AC_PROG_CC
 AM_PROG_CC_C_O
 AM_PROG_AR
 LT_INIT([disable-static])
-AM_PATH_PYTHON
+
+PKG_CHECK_MODULES([PYTHON], [python], [has_python=yes], [])
+AS_IF([test "x$has_python" = "xyes"], [
+    AM_PATH_PYTHON
+    AC_SUBST([PYTHON_CFLAGS])
+    AC_SUBST([PYTHON_LIBS])
+])
 
 dnl Not gpg2, it cannot receive passphrases from gpgme
 AC_PATH_PROG([GPG], [gpg])
-- 
2.13.0