[evolution] Bug #597932 - Split out Kerberos 5 check into an macro

[Henning Habighorst <hhabig src gnome org>]

commit e30c8ff3852d4056b8ed63a00675524913f8e2c4
Author: H. Habighorst <h habighorst googlemail com>
Date:   Fri Oct 9 21:32:55 2009 +0200

    Bug #597932 -  Split out Kerberos 5 check into an macro

 configure.ac           |   89 +----------------------------------------
 m4/evo_krb5_support.m4 |  104 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 105 insertions(+), 88 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 7838853..3825ae2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -761,94 +761,7 @@ AC_SUBST(GNOME_PILOT_LIBS)
 dnl ************
 dnl Kerberos 5
 dnl ************
-AC_ARG_WITH([krb5],
-	AS_HELP_STRING([--with-krb5=PATH],
-	[Location of Kerberos 5 install dir]),
-	[with_krb5=$withval],[with_krb5=no])
-AC_ARG_WITH([krb5-libs],
-	AS_HELP_STRING([--with-krb5-libs=PATH],
-	[Location of Kerberos 5 libraries]),
-	[with_krb5_libs=$withval],[with_krb5_libs=$with_krb5/lib])
-AC_ARG_WITH([krb5-includes],
-	AS_HELP_STRING([--with-krb5-includes=PATH],
-	[Location of Kerberos 5 headers]),
-	[with_krb5_includes=$withval],[with_krb5_includes=""])
-
-msg_krb5="no"
-if test "x${with_krb5}" != "xno"; then
-	LIBS_save="$LIBS"
-
-	mitlibs="-lkrb5 -lk5crypto -lcom_err -lgssapi_krb5"
-	heimlibs="-lkrb5 -lcrypto -lasn1 -lcom_err -lroken -lgssapi"
-	sunlibs="-lkrb5 -lgss"
-	AC_CACHE_CHECK([for Kerberos 5], [ac_cv_lib_kerberos5],
-	[
-		LIBS="$LIBS -L$with_krb5_libs $mitlibs"
-		AC_LINK_IFELSE([AC_LANG_CALL([], [krb5_init_context])],
-		[ac_cv_lib_kerberos5="$mitlibs"],
-		[
-			LIBS="$LIBS_save -L$with_krb5_libs $heimlibs"
-			AC_LINK_IFELSE([AC_LANG_CALL([], [krb5_init_context])],
-			[ac_cv_lib_kerberos5="$heimlibs"],
-			[
-				LIBS="$LIBS_save -L$with_krb5_libs $sunlibs"
-				AC_LINK_IFELSE([AC_LANG_CALL([], [krb5_init_context])],
-				[ac_cv_lib_kerberos5="$sunlibs"], [ac_cv_lib_kerberos5="no"])
-			])
-		])
-		LIBS="$LIBS_save"
-	])
-	if test "$ac_cv_lib_kerberos5" != "no"; then
-		AC_DEFINE(HAVE_KRB5,1,[Define if you have Krb5])
-		if test "$ac_cv_lib_kerberos5" = "$mitlibs"; then
-			AC_DEFINE(HAVE_MIT_KRB5,1,[Define if you have MIT Krb5])
-			if test -z "$with_krb5_includes"; then
-				KRB5_CFLAGS="-I$with_krb5/include"
-			else
-				KRB5_CFLAGS="-I$with_krb5_includes"
-			fi
-			msg_krb5="yes (MIT)"
-		else
-			if test "$ac_cv_lib_kerberos5" = "$heimlibs"; then
-				AC_DEFINE(HAVE_HEIMDAL_KRB5,1,[Define if you have Heimdal])
-				if test -z "$with_krb5_includes"; then
-					KRB5_CFLAGS="-I$with_krb5/include/heimdal"
-				else
-					KRB5_CFLAGS="-I$with_krb5_includes"
-				fi
-				msg_krb5="yes (Heimdal)"
-			else
-				AC_DEFINE(HAVE_SUN_KRB5,1,[Define if you have Sun Kerberosv5])
-				if test -z "$with_krb5_includes"; then
-					KRB5_CFLAGS="-I$with_krb5/include/kerberosv5"
-				else
-					KRB5_CFLAGS="-I$with_krb5_includes"
-				fi
-				msg_krb5="yes (Sun)"
-			fi
-		fi
-		KRB5_LIBS="-L$with_krb5_libs $ac_cv_lib_kerberos5"
-	fi
-else
-	AC_MSG_CHECKING([for Kerberos 5])
-	AC_MSG_RESULT([$with_krb5])
-fi
-
-AC_CHECK_HEADER([et/com_err.h],
-	[AC_DEFINE([HAVE_ET_COM_ERR_H], 1, [Have <et/comm_err.h>])],,
-	[[	#if HAVE_ET_COM_ERR_H
-		#include <com_err.h>
-		#endif
-	]])
-AC_CHECK_HEADER([com_err.h],
-	[AC_DEFINE([HAVE_COM_ERR_H], 1, [Have <comm_err.h>])],,
-	[[	#if HAVE_COM_ERR_H
-		#include <com_err.h>
-		#endif
-	]])
-
-AC_SUBST(KRB5_CFLAGS)
-AC_SUBST(KRB5_LIBS)
+EVO_KRB5_SUPPORT
 
 dnl ******************************
 dnl Mono hooks
diff --git a/m4/evo_krb5_support.m4 b/m4/evo_krb5_support.m4
new file mode 100644
index 0000000..fd27581
--- /dev/null
+++ b/m4/evo_krb5_support.m4
@@ -0,0 +1,104 @@
+#serial 0.1
+AC_DEFUN([EVO_KRB5_SUPPORT],[
+	dnl ******************************
+	dnl Kerberos
+	dnl ******************************
+	AC_ARG_WITH([krb5],
+		AS_HELP_STRING([--with-krb5=PATH],
+		[Location of Kerberos 5 install dir]),
+		[with_krb5="$withval"], [with_krb5="no"])
+
+	AC_ARG_WITH([krb5-libs],
+		AS_HELP_STRING([--with-krb5-libs=PATH],
+		[Location of Kerberos 5 libraries]),
+		[with_krb5_libs="$withval"], [with_krb5_libs="$with_krb5/lib"])
+
+	AC_ARG_WITH([krb5-includes],
+		AS_HELP_STRING([--with-krb5-includes=PATH],
+		[Location of Kerberos 5 headers]),
+		[with_krb5_includes="$withval"], [with_krb5_includes="$with_krb5/include"])
+
+	dnl ******************************
+	dnl Kerberos 5
+	dnl ******************************
+	msg_krb5="no"
+	AC_MSG_CHECKING([for Kerberos 5])
+	if test "x${with_krb5}" != "xno"; then
+		LIBS_save="$LIBS"
+
+		mitlibs="-lkrb5 -lk5crypto -lcom_err -lgssapi_krb5"
+		heimlibs="-lkrb5 -lcrypto -lasn1 -lcom_err -lroken -lgssapi"
+		sunlibs="-lkrb5 -lgss"
+		AC_CACHE_VAL([ac_cv_lib_kerberos5],
+		[
+			LIBS="$LIBS -L$with_krb5_libs $mitlibs"
+			AC_LINK_IFELSE([AC_LANG_CALL([], [krb5_init_context])],
+			[ac_cv_lib_kerberos5="$mitlibs"],
+			[
+				LIBS="$LIBS_save -L$with_krb5_libs $heimlibs"
+				AC_LINK_IFELSE([AC_LANG_CALL([], [krb5_init_context])],
+				[ac_cv_lib_kerberos5="$heimlibs"],
+				[
+					LIBS="$LIBS_save -L$with_krb5_libs $sunlibs"
+					AC_LINK_IFELSE([AC_LANG_CALL([], [krb5_init_context])],
+					[ac_cv_lib_kerberos5="$sunlibs"], [ac_cv_lib_kerberos5="no"])
+				])
+			])
+			LIBS="$LIBS_save"
+		])
+		if test "$ac_cv_lib_kerberos5" != "no"; then
+			AC_DEFINE(HAVE_KRB5,1,[Define if you have Krb5])
+			if test "$ac_cv_lib_kerberos5" = "$mitlibs"; then
+				AC_DEFINE(HAVE_MIT_KRB5,1,[Define if you have MIT Krb5])
+				if test -z "$with_krb5_includes"; then
+					KRB5_CFLAGS="-I$with_krb5/include"
+				else
+					KRB5_CFLAGS="-I$with_krb5_includes"
+				fi
+				msg_krb5="yes (MIT)"
+			else
+				if test "$ac_cv_lib_kerberos5" = "$heimlibs"; then
+					AC_DEFINE(HAVE_HEIMDAL_KRB5,1,[Define if you have Heimdal])
+					if test -z "$with_krb5_includes"; then
+						KRB5_CFLAGS="-I$with_krb5/include/heimdal"
+					else
+						KRB5_CFLAGS="-I$with_krb5_includes"
+					fi
+					msg_krb5="yes (Heimdal)"
+				else
+					AC_DEFINE(HAVE_SUN_KRB5,1,[Define if you have Sun Kerberosv5])
+					if test -z "$with_krb5_includes"; then
+						KRB5_CFLAGS="-I$with_krb5/include/kerberosv5"
+					else
+						KRB5_CFLAGS="-I$with_krb5_includes"
+					fi
+					msg_krb5="yes (Sun)"
+				fi
+			fi
+			KRB5_LIBS="-L$with_krb5_libs $ac_cv_lib_kerberos5"
+		else
+			AC_MSG_ERROR([You specified with krb5, but it was not found.])
+		fi
+	else
+		msg_krb5="no"
+	fi
+	AC_MSG_RESULT([$msg_krb5])
+
+	AM_CONDITIONAL(ENABLE_KRB5, [test "x$with_krb5" != "xno"])
+
+	AC_CHECK_HEADER([et/com_err.h],
+		[AC_DEFINE([HAVE_ET_COM_ERR_H], 1, [Have <et/comm_err.h>])],,
+		[[	#if HAVE_ET_COM_ERR_H
+			#include <com_err.h>
+			#endif
+		]])
+	AC_CHECK_HEADER([com_err.h],
+		[AC_DEFINE([HAVE_COM_ERR_H], 1, [Have <comm_err.h>])],,
+		[[	#if HAVE_COM_ERR_H
+			#include <com_err.h>
+			#endif
+		]])
+
+	AC_SUBST(KRB5_CFLAGS)
+	AC_SUBST(KRB5_LIBS)
+])