--- a/base/unix-gcc.mak	2014-09-22 19:17:33.000000000 +0900
+++ b/base/unix-gcc.mak	2015-03-11 20:58:56.434601000 +0900
@@ -57,13 +57,13 @@
 INSTALL_PROGRAM = $(INSTALL) -m 755
 INSTALL_DATA = $(INSTALL) -m 644
 
-prefix = /usr/local
+prefix = /usr
 exec_prefix = $(prefix)
 bindir = $(exec_prefix)/bin
 scriptdir = $(bindir)
 includedir = $(prefix)/include
 libdir = $(exec_prefix)/lib
-mandir = $(prefix)/man
+mandir = $(prefix)/share/man
 man1ext = 1
 datadir = $(prefix)/share
 gsdir = $(datadir)/ghostscript
@@ -71,7 +71,7 @@
 gssharedir = $(libdir)/ghostscript/$(GS_DOT_VERSION)
 gsincludedir = $(includedir)/ghostscript/
 
-docdir=$(gsdatadir)/doc
+docdir=$(gsdatadir)/doc/ghostscript-$(GS_DOT_VERSION)
 exdir=$(gsdatadir)/examples
 GS_DOCDIR=$(docdir)
 
@@ -156,7 +156,7 @@
 # what its name is.
 # See gs.mak and Make.htm for more information.
 
-SHARE_LIBPNG=0
+SHARE_LIBPNG=1
 LIBPNG_NAME=png
 
 # Define whether to use a shared version of libtiff and where
@@ -180,7 +180,7 @@
 # what its name is (usually libz, but sometimes libgz).
 # See gs.mak and Make.htm for more information.
 
-SHARE_ZLIB=0
+SHARE_ZLIB=1
 #ZLIB_NAME=gz
 ZLIB_NAME=z
 
@@ -245,7 +245,7 @@
 CFLAGS_STANDARD=-O2
 CFLAGS_DEBUG=-g -O0
 CFLAGS_PROFILE=-pg -O2
-CFLAGS_SO=-fPIC
+#CFLAGS_SO=-fPIC
 
 # Define the other compilation flags.  Add at most one of the following:
 #	-DBSD4_2 for 4.2bsd systems.
@@ -302,7 +302,7 @@
 # Note that x_.h expects to find the header files in $(XINCLUDE)/X11,
 # not in $(XINCLUDE).
 
-XINCLUDE=-I/usr/X11R6/include
+#XINCLUDE=-I/usr/X11R6/include
 
 # Define the directory/ies and library names for the X11 library files.
 # XLIBDIRS is for ld and should include -L; XLIBDIR is for LD_RUN_PATH
@@ -317,9 +317,11 @@
 #XLIBS=Xt SM ICE Xext X11
 
 #XLIBDIRS=-L/usr/local/X/lib
-XLIBDIRS=-L/usr/X11R6/lib
+#XLIBDIRS=-L/usr/X11R6/lib
+XLIBDIRS=
 XLIBDIR=
-XLIBS=Xt Xext X11
+#XLIBS=Xt Xext X11
+XLIBS=
 
 # Define the .dev module that implements thread and synchronization
 # primitives for this platform.
@@ -377,7 +379,8 @@
 # Choose the device(s) to include.  See devs.mak for details,
 # devs.mak and contrib.mak for the list of available devices.
 
-DEVICE_DEVS=$(DISPLAY_DEV) $(DD)x11.dev $(DD)x11alpha.dev $(DD)x11cmyk.dev $(DD)x11gray2.dev $(DD)x11gray4.dev $(DD)x11mono.dev
+#DEVICE_DEVS=$(DISPLAY_DEV) $(DD)x11.dev $(DD)x11alpha.dev $(DD)x11cmyk.dev $(DD)x11gray2.dev $(DD)x11gray4.dev $(DD)x11mono.dev
+DEVICE_DEVS=
 
 #DEVICE_DEVS1=
 #DEVICE_DEVS2=