Define GIT_SHA1 in header file.

.gitignore

@@ -4,6 +4,7 @@
 *.mod
 *.log
 *.out
+git_sha1.h
 
 # Compiler python objects
 *.pyc

src/CMakeLists.txt

@@ -137,6 +137,24 @@ if(petsc)
   set(libraries "${PETSC_PACKAGE_LIBS};${libpetsc};${libraries}")
 endif()
 
+#===============================================================================
+# git SHA1 hash
+#===============================================================================
+
+execute_process(COMMAND git log -1
+                COMMAND head -n 1
+                COMMAND cut -c8-
+                WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+                RESULT_VARIABLE GIT_SHA1_SUCCESS
+                OUTPUT_VARIABLE GIT_SHA1
+                ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE)
+if(GIT_SHA1_SUCCESS EQUAL 0)
+  file(WRITE ${CMAKE_CURRENT_SOURCE_DIR}/git_sha1.h
+    "#define GIT_SHA1 \"${GIT_SHA1}\"")
+else()
+  file(WRITE ${CMAKE_CURRENT_SOURCE_DIR}/git_sha1.h "")
+endif()
+  
 #===============================================================================
 # FoX Fortran XML Library
 #===============================================================================
@@ -154,7 +172,6 @@ add_executable(${program} ${source})
 target_link_libraries(${program} ${libraries} fox)
 set_target_properties(${program} PROPERTIES
   COMPILE_FLAGS "${f90flags}"
-  COMPILE_DEFINITIONS "${definitions}"
   LINK_FLAGS "${ldflags}")
 
 #===============================================================================

src/output.F90

@@ -55,6 +55,7 @@ contains
          '     License:        http://mit-crpg.github.io/openmc/license.html'
     write(UNIT=OUTPUT_UNIT, FMT='(6X,"Version:",8X,I1,".",I1,".",I1)') &
          VERSION_MAJOR, VERSION_MINOR, VERSION_RELEASE
+#include "git_sha1.h"
 #ifdef GIT_SHA1
     write(UNIT=OUTPUT_UNIT, FMT='(6X,"Git SHA1:",7X,A)') GIT_SHA1
 #endif