Make the standard paragraph an empty paragraph if its content allows it.

[lyx.git] / config / common.am

diff --git a/config/common.am b/config/common.am
index 476213313a1344aba9a51a27fbfb6c209abdeaf1..4c2e880625826f7517fbc40e9ad4dcdd85a6459d 100644 (file)
--- a/config/common.am
+++ b/config/common.am
@@ -1,12 +1,32 @@
 AUTOMAKE_OPTIONS = foreign
 
+CLEANFILES = pch.h.gch
+
 DISTCLEANFILES= *.orig *.rej *~ *.bak core
 
 MAINTAINERCLEANFILES = $(srcdir)/Makefile.in
 
 AM_INSTALL_DATA_FLAGS = $(INSTALL) -m 644 -D
 
-ETAGS_ARGS = --lang=c++
+AM_ETAGSFLAGS = --lang=c++
+
+if LYX_BUILD_PCH
+PCH_FLAGS = -Winvalid-pch --include=./pch.h
+PCH_FILE = ./pch.h.gch
+PCH_SOURCE = ./pch.h
+sinclude ./pch.h.gch.dep
+
+*.C *.cpp: $(PCH_FILE)
+
+pch.h.gch: $(PCH_SOURCE)
+       $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+        $(AM_CPPFLAGS) $(CPPFLAGS) $(CXXFLAGS) \
+       -x c++-header $(PCH_SOURCE) -MT $@ -MD -MP -MF "./$@.Tdep" \
+       && mv "./$@.Tdep" "./$@.dep" || rm "./$@.Tdep"
+
+endif
+
+SUFFIXES = .gch
 
 if USE_INCLUDED_BOOST
 BOOST_INCLUDES = -I$(top_srcdir)/boost