Move configuration checks to ConfigureChecks.cmake.HEADmaster

Add tde_setup_compiler_flags call and usual tests.
Add WITH_GCC_VISIBILITY option.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>

2 files changed, 89 insertions, 60 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4b90b14..1f1d005 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,6 +48,7 @@ tde_setup_paths( )
 
 ##### optional stuff ############################
 
+option( WITH_GCC_VISIBILITY   "Enable fvisibility and fvisibility-inlines-hidden" ON )
 option( WITH_BACKEND_LIBBFD   "Build with libbfd backend"    ON  )
 option( WITH_BACKEND_LIBELF   "Build with libelf backend"    OFF )
 option( WITH_BACKEND_READONLY "Build with read-only backend" OFF )
@@ -57,68 +58,10 @@ option( WITH_GTK              "Build support for GTK"        OFF )
 #       It uses weak linkage, so gtk will be required during build
 #       only and not strictly necessary during runtime.
 
+
 #### configure checks ###########################
 
-if( WITH_BACKEND_LIBBFD )
-    tde_save_and_set( CMAKE_REQUIRED_DEFINITIONS "-DPACKAGE" "-DPACKAGE_VERSION" )
-    check_include_file( bfd.h HAVE_BFD_H )
-    if( NOT HAVE_BFD_H )
-        tde_message_fatal( "Could not find libbfd header file (bfd.h)!\nThis file is usually included in the package binutils-dev." )
-    endif( NOT HAVE_BFD_H )
-    tde_save_and_set( CMAKE_REQUIRED_LIBRARIES "bfd" )
-    check_symbol_exists( bfd_asymbol_section bfd.h HAVE_BFD_2_34 )
-    check_c_source_compiles(
-        "#include <bfd.h>
-         int main() { bfd *ihandle, *ohandle; asection *iscn, *oscn;
-           bfd_copy_private_section_data(ihandle, iscn, ohandle, oscn, NULL);
-         }"
-        HAVE_BFD_2_45)
-    tde_restore( CMAKE_REQUIRED_LIBRARIES )
-    tde_restore( CMAKE_REQUIRED_DEFINITIONS )
-    set( BACKEND_LIBRARIES "-lbfd" )
-    set( LIBR_BACKEND "bfd" )
-    set( BACKEND_NAME "libbfd" )
-
-    check_include_file( libiberty.h HAVE_LIBIBERTY_H )
-    if( HAVE_LIBIBERTY_H )
-        list( APPEND BACKEND_LIBRARIES "-liberty" )
-    endif( HAVE_LIBIBERTY_H )
-
-elseif( WITH_BACKEND_LIBELF )
-    # Is libelf 0.8.2 safe enough? testing is currently on 0.8.6
-    pkg_search_module( BACKEND libelf>=0.8.2 )
-    if( NOT BACKEND_FOUND )
-        tde_message_fatal( "libelf >= 0.8.2 are required, but not found on your system" )
-    endif( NOT BACKEND_FOUND )
-    set( LIBR_BACKEND "elf" )
-    set( BACKEND_NAME "libelf" )
-
-elseif( WITH_BACKEND_READONLY )
-    set( BACKEND_NAME "readonly" )
-    set( LIBR_BACKEND "ro" )
-
-else( )
-    tde_message_fatal( "Backend is not selected, cannot build." )
-endif( )
-
-
-find_package( ZLIB )
-if( NOT ZLIB_FOUND )
-    tde_message_fatal( "zlib are required, but not found on your system" )
-endif( NOT ZLIB_FOUND )
-
-if( WITH_GTK )
-    pkg_search_module( GTK gtk+-2.0 )
-    if( NOT GTK_FOUND )
-        tde_message_fatal( "gtk2 is required but was not found on your system" )
-    endif( )
-endif( WITH_GTK )
-
-if( UNIX )
-  set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fvisibility=hidden" )
-endif( UNIX )
-
-message( STATUS "Ready to build with backend ${BACKEND_NAME}" )
+include( ConfigureChecks.cmake )
 
 
 #### pkg-config #################################
diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake
new file mode 100644
index 0000000..3590495
--- /dev/null
+++ b/ConfigureChecks.cmake
@@ -0,0 +1,86 @@
+#################################################
+#
+#  (C) 2014 Slávek Banko
+#  slavek (DOT) banko (AT) axis.cz
+#
+#  Improvements and feedback are welcome
+#
+#  This file is released under GPL >= 2
+#
+#################################################
+
+
+# required stuff
+
+tde_setup_compiler_flags( )
+
+include(TestBigEndian)
+test_big_endian(WORDS_BIGENDIAN)
+
+tde_setup_largefiles( )
+
+if( WITH_GCC_VISIBILITY )
+    tde_setup_gcc_visibility( )
+endif( )
+
+
+# check backend
+
+if( WITH_BACKEND_LIBBFD )
+    tde_save_and_set( CMAKE_REQUIRED_DEFINITIONS "-DPACKAGE" "-DPACKAGE_VERSION" )
+    check_include_file( bfd.h HAVE_BFD_H )
+    if( NOT HAVE_BFD_H )
+        tde_message_fatal( "Could not find libbfd header file (bfd.h)!\nThis file is usually included in the package binutils-dev." )
+    endif( NOT HAVE_BFD_H )
+    tde_save_and_set( CMAKE_REQUIRED_LIBRARIES "bfd" )
+    check_symbol_exists( bfd_asymbol_section bfd.h HAVE_BFD_2_34 )
+    check_c_source_compiles(
+        "#include <bfd.h>
+         int main() { bfd *ihandle, *ohandle; asection *iscn, *oscn;
+           bfd_copy_private_section_data(ihandle, iscn, ohandle, oscn, NULL);
+         }"
+        HAVE_BFD_2_45)
+    tde_restore( CMAKE_REQUIRED_LIBRARIES )
+    tde_restore( CMAKE_REQUIRED_DEFINITIONS )
+    set( BACKEND_LIBRARIES "-lbfd" )
+    set( LIBR_BACKEND "bfd" )
+    set( BACKEND_NAME "libbfd" )
+
+    check_include_file( libiberty.h HAVE_LIBIBERTY_H )
+    if( HAVE_LIBIBERTY_H )
+        list( APPEND BACKEND_LIBRARIES "-liberty" )
+    endif( HAVE_LIBIBERTY_H )
+
+elseif( WITH_BACKEND_LIBELF )
+    # Is libelf 0.8.2 safe enough? testing is currently on 0.8.6
+    pkg_search_module( BACKEND libelf>=0.8.2 )
+    if( NOT BACKEND_FOUND )
+        tde_message_fatal( "libelf >= 0.8.2 are required, but not found on your system" )
+    endif( NOT BACKEND_FOUND )
+    set( LIBR_BACKEND "elf" )
+    set( BACKEND_NAME "libelf" )
+
+elseif( WITH_BACKEND_READONLY )
+    set( BACKEND_NAME "readonly" )
+    set( LIBR_BACKEND "ro" )
+
+else( )
+    tde_message_fatal( "Backend is not selected, cannot build." )
+endif( )
+
+
+# check other libraries
+
+find_package( ZLIB )
+if( NOT ZLIB_FOUND )
+    tde_message_fatal( "zlib are required, but not found on your system" )
+endif( NOT ZLIB_FOUND )
+
+if( WITH_GTK )
+    pkg_search_module( GTK gtk+-2.0 )
+    if( NOT GTK_FOUND )
+        tde_message_fatal( "gtk2 is required but was not found on your system" )
+    endif( )
+endif( WITH_GTK )
+
+message( STATUS "Ready to build with backend ${BACKEND_NAME}" )