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 "$(exec_prefix)"'; \
echo '#define PKGINCLUDEDIR "$(pkgincludedir)"'; \
echo '#define PKGLIBDIR "$(pkglibdir)"'; \
echo '#define PKGLIBEXECDIR "$(pkglibexecdir)"'; \
- } | sed '/""/d' > $@-t
- mv $@-t $@
+ } | sed '/""/d' > $@-t && \
+ mv -f $@-t $@
+
BUILT_SOURCES += configmake.h
CLEANFILES += configmake.h configmake.h-t
Include:
/* Include only after all system include files. */
-#include "configmake.h"
+"configmake.h"
License:
LGPLv2+