From 9a79bcb678a3b26c8fa4a8231d9b7e51b0cf0b2c Mon Sep 17 00:00:00 2001
From: Alex Chernyakhovsky <achernya@MIT.EDU>
Date: Sun, 2 Jun 2013 00:32:17 -0400
Subject: Provide a pkg-config file for zephyr

Previously, it was difficult to detect the presence of the zephyr
library in autoconf, and required custom macros.  However, the world
has since developed pkg-config, which is a simple tool for detecting
the presence of a package, its compile-time flags, and its link-time
flags, even in the presence of recursive dependencies.  This adds
"zephyr.pc" as a file generated by the build process, and installs it
into the appropriate directory, allowing the target system to use

PKG_CHECK_MODULES([ZEPHYR], [zephyr])
AC_SUBST([ZEPHYR_CFLAGS])
AC_SUBST([ZEPHYR_LIBS])

to detect all necessary information to incorporate the zephyr library.
---
 Makefile.in  |  2 ++
 configure.ac |  1 +
 zephyr.pc.in | 12 ++++++++++++
 3 files changed, 15 insertions(+)
 create mode 100644 zephyr.pc.in

diff --git a/Makefile.in b/Makefile.in
index b424dc5..a21ce15 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -39,6 +39,7 @@ install:
 	${INSTALL} -d ${DESTDIR}${exec_prefix}
 	${INSTALL} -d ${DESTDIR}${bindir}
 	${INSTALL} -d ${DESTDIR}${libdir}
+	${INSTALL} -d ${DESTDIR}${libdir}/pkgconfig
 	${INSTALL} -d ${DESTDIR}${datadir}
 	${INSTALL} -d ${DESTDIR}${datadir}/zephyr
 	${INSTALL} -d ${DESTDIR}${sysconfdir}
@@ -54,6 +55,7 @@ install:
 		${DESTDIR}${includedir}/zephyr
 	${INSTALL} -m 644 ${srcdir}/h/zephyr/zephyr.h \
 		${DESTDIR}${includedir}/zephyr
+	${INSTALL} -m 644 zephyr.pc ${DESTDIR}${libdir}/pkgconfig
 	${INSTALL} -m 644 h/zephyr/zephyr_err.h ${DESTDIR}${includedir}/zephyr
 	for i in ${SUBDIRS}; do (cd $$i; ${MAKE} $@) || exit 1; done
 
diff --git a/configure.ac b/configure.ac
index 7278b41..647107e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -398,4 +398,5 @@ AC_OUTPUT(Makefile clients/Makefile clients/zaway/Makefile
           clients/zshutdown_notify/Makefile clients/zstat/Makefile
           clients/zwrite/Makefile lib/Makefile
           server/Makefile zhm/Makefile zwgc/Makefile
+          zephyr.pc
           )
diff --git a/zephyr.pc.in b/zephyr.pc.in
new file mode 100644
index 0000000..00782f4
--- /dev/null
+++ b/zephyr.pc.in
@@ -0,0 +1,12 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: @PACKAGE_NAME@
+Description: Project Athena's notification service
+Version: @PACKAGE_VERSION@
+Requires:
+Libs: -L${libdir} -l@PACKAGE_NAME@
+Libs.private: @HESIOD_LIBS@ @KRB4_LIBS@ @KRB5_LIBS@ @REGEX_LIBS@ 
+Cflags: -I${includedir}
-- 
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