[geany/geany-plugins] c5ebab: Merge pull request #159 from b4n/autotools-various

[Frank Lanitz]

Branch:      refs/heads/master
Author:      Frank Lanitz <frank at frank.uvena.de>
Committer:   Frank Lanitz <frank at frank.uvena.de>
Date:        Mon, 13 Oct 2014 16:09:50 UTC
Commit:      c5ebab2d9affca66514276591f1c71444bdd6736
             https://github.com/geany/geany-plugins/commit/c5ebab2d9affca66514276591f1c71444bdd6736

Log Message:
-----------
Merge pull request #159 from b4n/autotools-various

Two Autotools improvements


Modified Paths:
--------------
    build/ldflags.m4
    build/vars.build.mk
    configure.ac

Modified: build/ldflags.m4
40 lines changed, 40 insertions(+), 0 deletions(-)
===================================================================
@@ -0,0 +1,40 @@
+dnl GP_CHECK_LDFLAG(FLAG, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
+dnl Checks whether the linker understands FLAG
+AC_DEFUN([GP_CHECK_LDFLAG],
+[
+    gp_check_ldflag_LDFLAGS="$LDFLAGS"
+    LDFLAGS="$1"
+    AC_MSG_CHECKING([whether the linker understands $LDFLAGS])
+    AC_LANG_PUSH(C)
+    AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])],
+                   [AC_MSG_RESULT([yes])
+                    $2],
+                   [AC_MSG_RESULT([no])
+                    $3])
+    AC_LANG_POP(C)
+    LDFLAGS="$gp_check_ldflag_LDFLAGS"
+])
+
+dnl GP_CHECK_LDFLAGS
+dnl Checks for default Geany-Plugins LDFLAGS and defines GP_LDFLAGS
+AC_DEFUN([GP_CHECK_LDFLAGS],
+[
+    AC_ARG_ENABLE([extra-ld-flags],
+                  AS_HELP_STRING([--disable-extra-ld-flags],
+                                 [Disable extra linker flags]),
+                  [enable_extra_ld_flags=$enableval],
+                  [enable_extra_ld_flags=yes])
+
+    GP_LDFLAGS=
+    AS_IF([test "x$enable_extra_ld_flags" != xno],
+    [
+        enable_extra_ld_flags=yes
+        for flag in -Wl,-z,defs # do not allow undefined symbols in object files
+        do
+            GP_CHECK_LDFLAG([$flag], [GP_LDFLAGS="${GP_LDFLAGS} $flag"])
+        done
+    ])
+    AC_SUBST([GP_LDFLAGS])
+    GP_STATUS_BUILD_FEATURE_ADD([Extra linker options],
+                                [$enable_extra_c_warnings])
+])


Modified: build/vars.build.mk
2 lines changed, 1 insertions(+), 1 deletions(-)
===================================================================
@@ -9,7 +9,7 @@ AM_CFLAGS = \
 	$(GEANY_CFLAGS) \
 	$(GP_CFLAGS)
 
-AM_LDFLAGS = -module -avoid-version
+AM_LDFLAGS = -module -avoid-version $(GP_LDFLAGS)
 
 COMMONLIBS = \
 	$(GEANY_LIBS) \


Modified: configure.ac
3 lines changed, 2 insertions(+), 1 deletions(-)
===================================================================
@@ -1,7 +1,7 @@
 AC_PREREQ([2.61])
 dnl Don't forget when updating version number to do GP_CHECK_GEANY also
 AC_INIT([geany-plugins], [1.25])
-AM_INIT_AUTOMAKE([1.8 foreign dist-bzip2 tar-ustar])
+AM_INIT_AUTOMAKE([1.8 foreign dist-bzip2 tar-ustar subdir-objects])
 
 m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
 
@@ -23,6 +23,7 @@ GP_CHECK_UNITTESTS(0.9.4)
 GP_CHECK_GTK_VERSION
 GP_CHECK_CPPCHECK
 GP_CHECK_CFLAGS
+GP_CHECK_LDFLAGS
 
 dnl plugin checks
 GP_CHECK_ADDONS



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