From 588bcb49734dec1e9c6284f156ae15769735be81 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dawid=20Wro=CC=81bel?= <me@dawidwrobel.com>
Date: Thu, 7 Oct 2021 15:01:17 +0200
Subject: [PATCH] Prepare .pc and .cmake for static builds

This adds support for consuming a gwenhywfar that was compiled
statically. Note that it does not guarantee the actual 
functionality of gwenhywfar compiled as such, but it prepares 
the .pc and .cmake files for that.


---
 configure.ac               | 15 +++++++++++++--
 gwenhywfar-config.cmake.in | 11 +++++++++++
 gwenhywfar.pc.in           |  1 +
 3 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index bd0a1bf2..96f2cce5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -667,6 +667,9 @@ NEED_LIBGCRYPT_API=1
 NEED_LIBGCRYPT_VERSION=1.2.0
 AC_DEFINE_UNQUOTED(NEED_LIBGCRYPT_VERSION, "$NEED_LIBGCRYPT_VERSION",
                                      [Required version of Libgcrypt])
+NEED_LIBGCRYPT_MODULE="libgcrypt >= $NEED_LIBGCRYPT_VERSION"
+AC_SUBST(NEED_LIBGCRYPT_MODULE)
+
 case "$OS_TYPE" in
   windows)
     LIBGCRYPT_CFLAGS=""
@@ -700,7 +703,12 @@ AM_PATH_GPG_ERROR
 # check for libgnutls
 #
 
-PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.9.8])
+NEED_GNUTLS_VERSION=2.9.8
+AC_DEFINE_UNQUOTED(NEED_GNUTLS_VERSION, "$NEED_GNUTLS_VERSION",
+                                     [Required version of GnuTLS])
+NEED_GNUTLS_MODULE="gnutls >= $NEED_GNUTLS_VERSION"
+AC_SUBST(NEED_GNUTLS_MODULE)
+PKG_CHECK_MODULES([LIBGNUTLS], [$NEED_GNUTLS_MODULE])
 
 
 ###-------------------------------------------------------------------------
@@ -936,7 +944,10 @@ AM_CONDITIONAL(WITH_LIBXML2_CODE, [test "$gwen_with_libxml2_code" = "yes"])
 #
 if test "$gwen_with_libxml2_code" = "yes"; then
   AC_DEFINE(GWEN_COMPILE_LIBXML2_CODE, 1, [if libxml2-code is wanted])
-  PKG_CHECK_MODULES(LIBXML,  [libxml-2.0])
+  NEED_LIBXML2_MODULE="libxml-2.0"
+  AC_SUBST(NEED_LIBXML2_MODULE)
+  AC_SUBST(gwen_with_libxml2_code)
+  PKG_CHECK_MODULES(LIBXML,  [$NEED_LIBXML2_MODULE])
 fi
 
 
diff --git a/gwenhywfar-config.cmake.in b/gwenhywfar-config.cmake.in
index 55152a5a..42967152 100644
--- a/gwenhywfar-config.cmake.in
+++ b/gwenhywfar-config.cmake.in
@@ -68,6 +68,17 @@ if ( NOT ${FIND_GWEN_COMPONENT_QT5} EQUAL -1 )
   endif()
 endif()
 
+if (NOT @BUILD_SHARED_LIBS@)
+      find_package(PkgConfig)
+
+      pkg_check_modules(GnuTLS REQUIRED @NEED_GNUTLS_MODULE@)
+      pkg_check_modules(libgcrypt REQUIRED @NEED_LIBGCRYPT_MODULE@)
+
+      if(@gwen_with_libxml2_code@)
+        pkg_check_modules(LIBXML REQUIRED @NEED_LIBXML2_MODULE@)
+      endif()
+endif()
+
 check_required_components(GWENHYWFAR)
 
 # The target is available since gwenhywfar 4.15.3
diff --git a/gwenhywfar.pc.in b/gwenhywfar.pc.in
index d4c61d87..17b47280 100644
--- a/gwenhywfar.pc.in
+++ b/gwenhywfar.pc.in
@@ -30,4 +30,5 @@ Description: A multi-platform helper library for other libraries
 Version: @VERSION@
 Libs: @gwenhywfar_ldflags@ @gwenhywfar_libs@
 Cflags: -I@gwenhywfar_headerdir@
+Requires.private: @NEED_GNUTLS_MODULE@, @NEED_LIBGCRYPT_MODULE@, @NEED_LIBXML2_MODULE@
 
-- 
2.33.0