core: Install new files gpgrt.m4 and gpgrt-config.

* src/gpgrt.m4: New.  Bascially a copy of libgpg-error.m4
* src/gpg-error-config.in: Decide which name to print.
* src/Makefile.am (nodist_bin_SCRIPTS): Add gpgrt-config.
(m4data_DATA): Add gpgrt.m4
(EXTRA_DIST): Add gpgrt.m4.
(BUILT_SOURCES): Add gpgrt-config.
(CLEANFILES): Add gpgrt-config.
(gpgrt-config): Create from gpg-error-config.
--

These files can be used instead of gpg-error-config or gpg-error.m4.
The hope is that providing them early will ease an eventual migration
from libgpg-error to libgpgrt easier.

Signed-off-by: Werner Koch <wk@gnupg.org>

1 files changed, 14 insertions, 6 deletions

diff --git a/doc/gpgrt.texi b/doc/gpgrt.texi
index 857973a..cc652f5 100644
--- a/doc/gpgrt.texi
+++ b/doc/gpgrt.texi
@@ -209,17 +209,25 @@ directory in which the header file is located to the compilers include
 file search path (via the @option{-I} option).
 
 However, the path to the include file is determined at the time the
-source is configured.  To solve this problem, Libgpg-error ships with a small
-helper program @command{gpg-error-config} that knows the path to the
-include file and other configuration options.  The options that need
-to be added to the compiler invocation at compile time are output by
-the @option{--cflags} option to @command{gpg-error-config}.  The following
-example shows how it can be used at the command line:
+source is configured.  To solve this problem, Libgpg-error ships with
+the small helper programs @command{gpg-error-config} and
+@command{gpgrt-config} which both know the path to the include file
+and other configuration options.  The options that need to be added to
+the compiler invocation at compile time are output by the
+@option{--cflags} option to @command{gpg-error-config} (or
+@command{gpgrt-config}.  The following example shows how it can be
+used at the command line:
 
 @example
 gcc -c foo.c $(gpg-error-config --cflags)
 @end example
 
+or with the identical
+
+@example
+gcc -c foo.c $(gpgrt-config --cflags)
+@end example
+
 Adding the output of @samp{gpg-error-config --cflags} to the
 compiler’s command line will ensure that the compiler can find the
 Libgpg-error header file.