X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=modules%2Fconfigmake;h=a387984a37d7138b4c9d418393436469d8ce02fd;hb=8aad2a7bdd93df610506c08accd7cf1b67153f51;hp=b814ffdff53524eed775e316baa088984c717008;hpb=0f1ddc3b4330242c23adb102b56c678267554f52;p=gnulib.git

diff --git a/modules/configmake b/modules/configmake
index b814ffdff..a387984a3 100644
--- a/modules/configmake
+++ b/modules/configmake
@@ -1,32 +1,21 @@
 Description:
-Variables set by "configure" or "make".
+Access from source code to variables set by "configure" or "make".
 
 Files:
+m4/configmake.m4
 
 Depends-on:
 
 configure.ac:
+gl_CONFIGMAKE_PREP
 
 Makefile.am:
-# Retrieve values of the variables through 'configure' followed by
-# 'make', not directly through 'configure', so that a user who
-# sets some of these variables consistently on the 'make' command
-# line gets correct results.
-#
-# One advantage of this approach, compared to the classical
-# approach of adding -DLIBDIR=\"$(libdir)\" etc. to AM_CPPFLAGS,
-# is that it protects against the use of undefined variables.
-# If, say, $(libdir) is not set in the Makefile, LIBDIR is not
-# defined by this module, and code using LIBDIR gives a
-# compilation error.
-#
-# Another advantage is that 'make' output is shorter.
-#
-# Listed in the same order as the GNU makefile conventions.
+# Listed in the same order as the GNU makefile conventions, and
+# provided by autoconf 2.59c+.
 # The Automake-defined pkg* macros are appended, in the order
 # listed in the Automake 1.10a+ documentation.
 configmake.h: Makefile
-	rm -f $@-t $@
+	$(AM_V_GEN)rm -f $@-t && \
 	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
 	  echo '#define PREFIX "$(prefix)"'; \
 	  echo '#define EXEC_PREFIX "$(exec_prefix)"'; \
@@ -55,16 +44,22 @@ configmake.h: Makefile
 	  echo '#define PKGINCLUDEDIR "$(pkgincludedir)"'; \
 	  echo '#define PKGLIBDIR "$(pkglibdir)"'; \
 	  echo '#define PKGLIBEXECDIR "$(pkglibexecdir)"'; \
-	} | sed '/""/d' > $@-t
-	mv $@-t $@
+	} | sed '/""/d' > $@-t && \
+	if test -f $@ && cmp $@-t $@ > /dev/null; then \
+	  rm -f $@-t; \
+	else \
+	  rm -f $@; mv $@-t $@; \
+	fi
+
 BUILT_SOURCES += configmake.h
 CLEANFILES += configmake.h configmake.h-t
 
 Include:
+/* Include only after all system include files.  */
 "configmake.h"
 
 License:
-LGPL
+LGPLv2+
 
 Maintainer:
 all