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[Guile-commits] GNU Guile branch, stable-2.0, updated. v2.0.0-16-g1867d3
From: |
Andy Wingo |
Subject: |
[Guile-commits] GNU Guile branch, stable-2.0, updated. v2.0.0-16-g1867d3e |
Date: |
Sun, 20 Feb 2011 10:53:13 +0000 |
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http://git.savannah.gnu.org/cgit/guile.git/commit/?id=1867d3e0195168a34cf2269c2137ac561d03a252
The branch, stable-2.0 has been updated
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- Log -----------------------------------------------------------------
commit 1867d3e0195168a34cf2269c2137ac561d03a252
Author: Bruno Haible <address@hidden>
Date: Sun Feb 20 11:49:48 2011 +0100
guile.m4: Add support for linking against guile with rpath.
* guile.m4 (GUILE_FLAGS): Also set GUILE_LIBS and GUILE_LTLIBS. Fix
documentation.
-----------------------------------------------------------------------
Summary of changes:
meta/guile.m4 | 43 +++++++++++++++++++++++++++++++++++--------
1 files changed, 35 insertions(+), 8 deletions(-)
diff --git a/meta/guile.m4 b/meta/guile.m4
index aaa9f88..a7186fb 100644
--- a/meta/guile.m4
+++ b/meta/guile.m4
@@ -70,29 +70,56 @@ AC_DEFUN([GUILE_PROGS],
#
# This macro runs the @code{guile-config} script, installed with Guile, to
# find out where Guile's header files and libraries are installed. It sets
-# two variables, @var{GUILE_CFLAGS} and @var{GUILE_LDFLAGS}.
+# four variables, @var{GUILE_CFLAGS}, @var{GUILE_LDFLAGS}, @var{GUILE_LIBS},
+# and @var{GUILE_LTLIBS}.
#
# @var{GUILE_CFLAGS}: flags to pass to a C or C++ compiler to build code that
-# uses Guile header files. This is almost always just a @code{-I} flag.
+# uses Guile header files. This is almost always just one or more @code{-I}
+# flags.
#
-# @var{GUILE_LDFLAGS}: flags to pass to the linker to link a program against
+# @var{GUILE_LDFLAGS}: flags to pass to the compiler to link a program against
# Guile. This includes @code{-lguile} for the Guile library itself, any
# libraries that Guile itself requires (like -lqthreads), and so on. It may
-# also include a @code{-L} flag to tell the compiler where to find the
-# libraries.
+# also include one or more @code{-L} flag to tell the compiler where to find
+# the libraries. But it does not include flags that influence the program's
+# runtime search path for libraries, and will therefore lead to a program
+# that fails to start, unless all necessary libraries are installed in a
+# standard location such as @file{/usr/lib}.
+#
+# @var{GUILE_LIBS} and @var{GUILE_LTLIBS}: flags to pass to the compiler or to
+# libtool, respectively, to link a program against Guile. It includes flags
+# that augment the program's runtime search path for libraries, so that shared
+# libraries will be found at the location where they were during linking, even
+# in non-standard locations. @var{GUILE_LIBS} is to be used when linking the
+# program directly with the compiler, whereas @var{GUILE_LTLIBS} is to be used
+# when linking the program is done through libtool.
#
# The variables are marked for substitution, as by @code{AC_SUBST}.
#
AC_DEFUN([GUILE_FLAGS],
- [AC_REQUIRE([GUILE_PROGS])dnl
+ [dnl Find guile-config.
+ AC_REQUIRE([GUILE_PROGS])dnl
+
AC_MSG_CHECKING([libguile compile flags])
GUILE_CFLAGS="`$GUILE_CONFIG compile`"
AC_MSG_RESULT([$GUILE_CFLAGS])
+
AC_MSG_CHECKING([libguile link flags])
GUILE_LDFLAGS="`$GUILE_CONFIG link`"
AC_MSG_RESULT([$GUILE_LDFLAGS])
- AC_SUBST(GUILE_CFLAGS)
- AC_SUBST(GUILE_LDFLAGS)
+
+ dnl Determine the platform dependent parameters needed to use rpath.
+ dnl AC_LIB_LINKFLAGS_FROM_LIBS is defined in gnulib/m4/lib-link.m4 and needs
+ dnl the file gnulib/build-aux/config.rpath.
+ AC_LIB_LINKFLAGS_FROM_LIBS([GUILE_LIBS], [$GUILE_LDFLAGS], [])
+ GUILE_LIBS="$GUILE_LDFLAGS $GUILE_LIBS"
+ AC_LIB_LINKFLAGS_FROM_LIBS([GUILE_LTLIBS], [$GUILE_LDFLAGS], [yes])
+ GUILE_LTLIBS="$GUILE_LDFLAGS $GUILE_LTLIBS"
+
+ AC_SUBST([GUILE_CFLAGS])
+ AC_SUBST([GUILE_LDFLAGS])
+ AC_SUBST([GUILE_LIBS])
+ AC_SUBST([GUILE_LTLIBS])
])
# GUILE_SITE_DIR -- find path to Guile "site" directory
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