From 996927fa2b3e9fe40e3d236d3c8a08b1cbb9ad58 Mon Sep 17 00:00:00 2001
From: Hans Ulrich Niedermann <hun@n-dimensional.de>
Date: Fri, 15 Apr 2005 00:47:38 +0200
Subject: [PATCH] update m4 macros from gphoto

---
 m4m/gp-check-library.m4 | 18 ++++++++++--------
 m4m/gp-config-msg.m4    |  3 +++
 m4m/gp-documentation.m4 | 25 +++++++++++++++++++++++--
 3 files changed, 36 insertions(+), 10 deletions(-)

diff --git a/m4m/gp-check-library.m4 b/m4m/gp-check-library.m4
index 1799f89..455a4e5 100644
--- a/m4m/gp-check-library.m4
+++ b/m4m/gp-check-library.m4
@@ -90,7 +90,9 @@ dnl
 AC_REQUIRE([GP_CONFIG_MSG])dnl
 AC_REQUIRE([GP_PKG_CONFIG])dnl
 AC_REQUIRE([_GP_CHECK_LIBRARY_SOEXT])dnl
-dnl
+dnl Use _CFLAGS and _LIBS given to configure.
+dnl This makes it possible to set these vars in a configure script
+dnl and AC_CONFIG_SUBDIRS this configure.
 AC_ARG_VAR([$1][_CFLAGS], [CFLAGS for compiling with ][$2])dnl
 AC_ARG_VAR([$1][_LIBS],   [LIBS to add for linking against ][$2])dnl
 dnl
@@ -109,10 +111,11 @@ if test "x${[$1][_LIBS]}" = "x" && test "x${[$1][_CFLAGS]}" = "x"; then
 	AC_MSG_RESULT([${try_][$1][}])
 	m4_popdef([gp_lib_arg])dnl
 	if test "x${[try_][$1]}" = "xautodetect"; then
+		dnl we need that line break after the PKG_CHECK_MODULES
 		m4_ifval([$3],
 			[PKG_CHECK_MODULES([$1],[$2][ $3],[have_][$1][=yes])],
 			[PKG_CHECK_MODULES([$1],[$2],     [have_][$1][=yes])]
-		)dnl
+		)
 		if test "x${[have_][$1]}" = "xno"; then
 			ifs="$IFS"
 			IFS=":" # FIXME: for W32 and OS/2 we need ";" here
@@ -197,16 +200,15 @@ fi
 ])dnl
 dnl
 dnl Run our own test link
-dnl    Does not work for *.la libs, so we deactivated it.
+dnl    Does not work for libraries which be built after configure time,
+dnl    so we deactivate it.
 dnl
 dnl m4_ifval([$5],[dnl
 dnl if test "x${[have_][$1]}" = "xyes"; then
-dnl AC_MSG_CHECKING([whether ][$2][ test link succeeds])
-dnl LDFLAGS_save="$LDFLAGS"
-dnl LDFLAGS="${[$1]_LIBS}"
+dnl LIBS_save="$LIBSS"
+dnl LIBS="${[$1]_LIBS}"
 dnl AC_TRY_LINK_FUNC([$5],[],[have_][$1][=no])
-dnl LDFLAGS="$LDFLAGS_save"
-dnl AC_MSG_RESULT([${[have_][$1]}])
+dnl LIBS="$LIBS_save"
 dnl fi
 dnl ])dnl
 dnl
diff --git a/m4m/gp-config-msg.m4 b/m4m/gp-config-msg.m4
index ae8df96..8cf7427 100644
--- a/m4m/gp-config-msg.m4
+++ b/m4m/gp-config-msg.m4
@@ -51,6 +51,9 @@ AC_DEFUN([GP_CONFIG_MSG],
 m4_if([$1],[],[
 gp_config_msg="${gp_config_msg}
 "
+],[$2],[],[
+gp_config_msg="${gp_config_msg}	$1
+"
 ],[
 gp_config_msg="${gp_config_msg}	$(expr "$1:${gp_config_empty}" : "\(.\{0,${gp_config_len}\}\)") $2
 "
diff --git a/m4m/gp-documentation.m4 b/m4m/gp-documentation.m4
index a944cc5..b4a486a 100644
--- a/m4m/gp-documentation.m4
+++ b/m4m/gp-documentation.m4
@@ -7,7 +7,8 @@ dnl
 
 AC_DEFUN([GP_CHECK_DOC_DIR],
 [
-AC_BEFORE([$0], [GP_BUILD_DOCS])dnl
+AC_BEFORE([$0], [GP_BUILD_GTK_DOCS])dnl
+AC_BEFORE([$0], [GP_CHECK_DOXYGEN])dnl
 
 AC_ARG_WITH([doc-dir],
 [AS_HELP_STRING([--with-doc-dir=PATH],
@@ -56,7 +57,7 @@ dnl * determine presence of prerequisites (only gtk-doc for now)
 dnl * determine destination directory for HTML files
 dnl
 
-AC_DEFUN([GP_BUILD_DOCS],
+AC_DEFUN([GP_BUILD_GTK_DOCS],
 [
 # docdir has to be determined in advance
 AC_REQUIRE([GP_CHECK_DOC_DIR])
@@ -109,3 +110,23 @@ apidocdir="${htmldir}/api"
 AC_SUBST([apidocdir}])
 
 ])dnl
+
+
+dnl doxygen related stuff
+dnl look for tools
+dnl define substitutions for Doxyfile.in
+AC_DEFUN([GP_CHECK_DOXYGEN],[dnl
+AC_REQUIRE([GP_CHECK_DOC_DIR])dnl
+AC_PATH_PROG([DOT], [dot], [false])
+AC_PATH_PROG([DOXYGEN], [doxygen], [false])
+AM_CONDITIONAL([HAVE_DOXYGEN], [test "x$DOXYGEN" != "false"])
+AM_CONDITIONAL([HAVE_DOT], [test "x$DOT" != "false"])
+if test "x$DOT" != "false"; then
+	AC_SUBST([HAVE_DOT],[YES])
+else
+	AC_SUBST([HAVE_DOT],[NO])
+fi
+AC_SUBST([HTML_APIDOC_DIR], ["${PACKAGE_TARNAME}-api.html"])
+AC_SUBST([DOXYGEN_OUTPUT_DIR], [doxygen-output])
+])dnl
+
-- 
2.7.4