only include precompiled headers once

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@19456 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/src/Makefile.am b/src/Makefile.am
index 72c8df79f89ca0f0a459dfc69d30024df581fd95..a19047db8e0186d05d750f11fef49330ed612ea9 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -41,8 +41,6 @@ lyx$(EXEEXT): $(FRONTENDS_PROGS)
 
 BUILT_SOURCES = $(PCH_FILE) version.cpp
 
-AM_CPPFLAGS += $(PCH_FLAGS) $(BOOST_INCLUDES)
-
 if USE_ASPELL
 ASPELL = ASpell.cpp ASpell_local.h
 endif