Re-add tag support for the version string.

CMakeLists.txt

@@ -13,6 +13,10 @@ project(FreeDV
   LANGUAGES C CXX
 )
 
+# Adds a tag to the end of the version string. Leave empty
+# for official release builds.
+set(FREEDV_VERSION_TAG "devel")
+
 # Prevent in-source builds to protect automake/autoconf config.
 # If an in-source build is attempted, you will still need to clean up a few
 # files manually.

cmake/version.h.in

@@ -6,6 +6,10 @@
 #define FREEDV_VERSION_PATCH @FreeDV_VERSION_PATCH@
 #define FREEDV_VERSION_SUFFIX @FreeDV_VERSION_TWEAK@
 
-#define FREEDV_VERSION "@FreeDV_VERSION@"
+#if defined(FREEDV_VERSION_TAG)
+#define FREEDV_VERSION ("@FreeDV_VERSION@-" FREEDV_VERSION_TAG)
+#else
+#define FREEDV_VERSION ("@FreeDV_VERSION@-")
+#endif // defined(FREEDV_VERSION_TAG)
 
 #endif //FREEDV_VER_DOT_H

src/CMakeLists.txt

@@ -113,6 +113,11 @@ add_definitions(-DAPPLE_OLD_XCODE)
 endif(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 9.0.0.900037)
 endif(APPLE)
 
+# If a release tag's set, pass it to the compiler.
+if(FREEDV_VERSION_TAG)
+add_definitions(-DFREEDV_VERSION_TAG="${FREEDV_VERSION_TAG}")
+endif(FREEDV_VERSION_TAG)
+
 # Insert source and generated header directories before other search directories.
 include_directories(BEFORE ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR})