1 files changed, 2 insertions, 2 deletions
diff --git a/bison.pri b/bison.pri
index d2972d6..f28c6e0 100644
--- a/bison.pri
+++ b/bison.pri
@@ -3,7 +3,7 @@
   bison.input = BISONSOURCES
   bison.output = ${QMAKE_FILE_PATH}/${QMAKE_FILE_BASE}_yacc.cpp
   bison.commands = bison -d -p ${QMAKE_FILE_BASE} -o ${QMAKE_FILE_PATH}/${QMAKE_FILE_BASE}_yacc.cpp ${QMAKE_FILE_IN}
-  bison.commands += && mv ${QMAKE_FILE_PATH}/${QMAKE_FILE_BASE}_yacc.hpp ${QMAKE_FILE_PATH}/${QMAKE_FILE_BASE}_yacc.h
+  bison.commands += && if [ -e ${QMAKE_FILE_PATH}/${QMAKE_FILE_BASE}_yacc.hpp ]; then mv ${QMAKE_FILE_PATH}/${QMAKE_FILE_BASE}_yacc.hpp ${QMAKE_FILE_PATH}/${QMAKE_FILE_BASE}_yacc.h ; fi
   bison.CONFIG += target_predeps
   bison.variable_out = GENERATED_SOURCES
   silent:bison.commands = @echo Bison ${QMAKE_FILE_IN} && $$bison.commands
@@ -11,7 +11,7 @@
   bison_header.input = BISONSOURCES
   bison_header.output = ${QMAKE_FILE_PATH}/${QMAKE_FILE_BASE}_yacc.h
   bison_header.commands = bison -d -p ${QMAKE_FILE_BASE} -o ${QMAKE_FILE_PATH}/${QMAKE_FILE_BASE}_yacc.cpp ${QMAKE_FILE_IN}
-  bison_header.commands += && mv ${QMAKE_FILE_PATH}/${QMAKE_FILE_BASE}_yacc.hpp ${QMAKE_FILE_PATH}/${QMAKE_FILE_BASE}_yacc.h
+  bison_header.commands += && if [ -e ${QMAKE_FILE_PATH}/${QMAKE_FILE_BASE}_yacc.hpp ]; then mv ${QMAKE_FILE_PATH}/${QMAKE_FILE_BASE}_yacc.hpp ${QMAKE_FILE_PATH}/${QMAKE_FILE_BASE}_yacc.h ; fi
   bison_header.CONFIG += target_predeps no_link
   silent:bison_header.commands = @echo Bison ${QMAKE_FILE_IN} && $$bison.commands
   QMAKE_EXTRA_COMPILERS += bison_header