From 72975df6c8c59aaf849138ab3606e8fb6970596a Mon Sep 17 00:00:00 2001
From: Lasse Collin <lasse.collin@tukaani.org>
Date: Mon, 9 Sep 2013 20:37:03 +0300
Subject: Build: Create liblzma.pc in a src/liblzma/Makefile.am.

Previously it was done in configure, but doing that goes
against the Autoconf manual. Autoconf requires that it is
possible to override e.g. prefix after running configure
and that doesn't work correctly if liblzma.pc is created
by configure.

A potential downside of this change is that now e.g.
libdir in liblzma.pc is a standalone string instead of
being defined via ${prefix}, so if one overrides prefix
when running pkg-config the libdir won't get the new value.
I don't know if this matters in practice.

Thanks to Vincent Torri.
---
 src/liblzma/Makefile.am | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'src/liblzma/Makefile.am')

diff --git a/src/liblzma/Makefile.am b/src/liblzma/Makefile.am
index 70183616..9ad021a2 100644
--- a/src/liblzma/Makefile.am
+++ b/src/liblzma/Makefile.am
@@ -94,3 +94,23 @@ endif
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = liblzma.pc
 EXTRA_DIST += liblzma.pc.in
+
+pc_verbose = $(pc_verbose_@AM_V@)
+pc_verbose_ = $(pc_verbose_@AM_DEFAULT_V@)
+pc_verbose_0 = @echo "  PC      " $@;
+
+liblzma.pc: $(srcdir)/liblzma.pc.in
+	$(AM_V_at)rm -f $@
+	$(pc_verbose)sed \
+		-e 's,@prefix[@],$(prefix),g' \
+		-e 's,@exec_prefix[@],$(exec_prefix),g' \
+		-e 's,@libdir[@],$(libdir),g' \
+		-e 's,@includedir[@],$(includedir),g' \
+		-e 's,@PACKAGE_URL[@],$(PACKAGE_URL),g' \
+		-e 's,@PACKAGE_VERSION[@],$(PACKAGE_VERSION),g' \
+		-e 's,@PTHREAD_CFLAGS[@],$(PTHREAD_CFLAGS),g' \
+		-e 's,@LIBS[@],$(LIBS),g' \
+		< $< > $@ || { rm -f $@; exit 1; }
+
+clean-local:
+	rm -f liblzma.pc
-- 
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