[git] GCRYPT - branch, master, updated. libgcrypt-1.6.0-116-g0ecd136

by Werner Koch cvs at cvs.gnupg.org
Thu Oct 2 15:03:54 CEST 2014

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- Log -----------------------------------------------------------------
commit 0ecd136a6ca02252f63ad229fa5240897bfe6544
Author: Werner Koch <wk at gnupg.org>
Date:   Thu Oct 2 14:49:31 2014 +0200

    build: Document SYSROOT.
    * configure.ac: Mark SYSROOT as arg var.

diff --git a/configure.ac b/configure.ac
index baed3ec..18db662 100644
--- a/configure.ac
+++ b/configure.ac
@@ -83,6 +83,8 @@ AC_CANONICAL_HOST
+AC_ARG_VAR(SYSROOT,[locate config scripts also below that directory])
diff --git a/doc/gcrypt.texi b/doc/gcrypt.texi
index ecd4d7f..58671df 100644
--- a/doc/gcrypt.texi
+++ b/doc/gcrypt.texi
@@ -267,9 +267,9 @@ example shows how it can be used at the command line:
 gcc -c foo.c `libgcrypt-config --cflags`
 @end example
-Adding the output of @samp{libgcrypt-config --cflags} to the compilers
-command line will ensure that the compiler can find the Libgcrypt header
+Adding the output of @samp{libgcrypt-config --cflags} to the
+compiler’s command line will ensure that the compiler can find the
+Libgcrypt header file.
 A similar problem occurs when linking the program with the library.
 Again, the compiler has to find the library files.  For this to work,
@@ -314,7 +314,20 @@ found, execute @var{action-if-found}, otherwise do
 Additionally, the function defines @code{LIBGCRYPT_CFLAGS} to the
 flags needed for compilation of the program to find the
 @file{gcrypt.h} header file, and @code{LIBGCRYPT_LIBS} to the linker
-flags needed to link the program to the Libgcrypt library.
+flags needed to link the program to the Libgcrypt library.  If the
+used helper script does not match the target type you are building for
+a warning is printed and the string @code{libgcrypt} is appended to the
+variable @code{gpg_config_script_warn}.
+This macro searches for @command{libgcrypt-config} along the PATH.  If
+you are cross-compiling, it is useful to set the environment variable
+ at code{SYSROOT} to the top directory of your target.  The macro will
+then first look for the helper program in the @file{bin} directory
+below that top directory.  An absolute directory name must be used for
+ at code{SYSROOT}.  Finally, if the configure command line option
+ at code{--libgcrypt-prefix} is used, only its value is used for the top
+directory below which the helper script is expected.
 @end defmac
 You can use the defined Autoconf variables like this in your


Summary of changes:
 configure.ac    |    2 ++
 doc/gcrypt.texi |   21 +++++++++++++++++----
 2 files changed, 19 insertions(+), 4 deletions(-)

The GNU crypto library

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