Major redesign of the build system. Also allow icons to be installed optionally:

[quassel.git] / cmake / modules / FindExecInfo.cmake

diff --git a/cmake/modules/FindExecInfo.cmake b/cmake/modules/FindExecInfo.cmake
new file mode 100644 (file)
index 0000000..042a115
--- /dev/null
+++ b/cmake/modules/FindExecInfo.cmake
@@ -0,0 +1,29 @@
+# Set up execinfo
+
+# The problem with this library is that it is built-in in the Linux glib,
+# while on systems like FreeBSD, it is installed separately and thus needs to be linked to.
+# Therefore, we search for the header to see if the it's available in the first place.
+# If it is available, we try to locate the library to figure out whether it is built-in or not.
+
+find_path(EXECINFO_INCLUDES "execinfo.h")
+
+if(EXECINFO_INCLUDES STREQUAL "EXECINFO_INCLUDES-NOTFOUND")
+  set(EXECINFO_INCLUDES "")
+else(EXECINFO_INCLUDES STREQUAL "EXECINFO_INCLUDES-NOTFOUND")
+  # We found the header file's include dir.
+
+  # Now determine if it's built-in or not, by searching the library file.
+  find_library(EXECINFO_LIBRARIES "execinfo")
+
+  if(EXECINFO_LIBRARIES STREQUAL "EXECINFO_LIBRARIES-NOTFOUND")
+    # Built-in, no further action is needed
+    set(EXECINFO_LIBRARIES "")
+    message(STATUS "Found execinfo (built-in)")
+  else(EXECINFO_LIBRARIES STREQUAL "EXECINFO_LIBRARIES-NOTFOUND")
+    # It's an external library.
+    message(STATUS "Found execinfo: ${EXECINFO_LIBRARIES}")
+  endif(EXECINFO_LIBRARIES STREQUAL "EXECINFO_LIBRARIES-NOTFOUND")
+
+  set(EXECINFO_FOUND true)
+
+endif(EXECINFO_INCLUDES STREQUAL "EXECINFO_INCLUDES-NOTFOUND")