Use -fPIC for Linux and Darwin builds.

See: https://bugs.launchpad.net/ubuntu/+source/glew/+bug/811789

Makefile

@@ -121,7 +121,7 @@ tmp/$(SYSTEM)/default/static/glew.o: src/glew.c include/GL/glew.h include/GL/wgl
 
 tmp/$(SYSTEM)/default/shared/glew.o: src/glew.c include/GL/glew.h include/GL/wglew.h include/GL/glxew.h
 	@mkdir -p $(dir $@)
-	$(CC) -DGLEW_NO_GLU $(CFLAGS) $(PICFLAG) $(CFLAGS.SO) -o $@ -c $<
+	$(CC) -DGLEW_NO_GLU $(CFLAGS) $(CFLAGS.SO) -o $@ -c $<
 
 glew.pc: glew.pc.in
 	sed \
@@ -157,7 +157,7 @@ tmp/$(SYSTEM)/mx/static/glew.o: src/glew.c include/GL/glew.h include/GL/wglew.h
 
 tmp/$(SYSTEM)/mx/shared/glew.o: src/glew.c include/GL/glew.h include/GL/wglew.h include/GL/glxew.h
 	@mkdir -p $(dir $@)
-	$(CC) -DGLEW_NO_GLU -DGLEW_MX $(CFLAGS) $(PICFLAG) $(CFLAGS.SO) -o $@ -c $<
+	$(CC) -DGLEW_NO_GLU -DGLEW_MX $(CFLAGS) $(CFLAGS.SO) -o $@ -c $<
 
 glewmx.pc: glew.pc.in
 	sed \

config/Makefile.darwin

@@ -3,7 +3,6 @@ CC = cc
 LD = cc
 CFLAGS.EXTRA = -dynamic -fno-common
 #CFLAGS.EXTRA += -no-cpp-precomp
-PICFLAG = -fPIC
 LDFLAGS.EXTRA =
 ifneq (undefined, $(origin GLEW_APPLE_GLX))
 CFLAGS.EXTRA += -I/usr/X11R6/include -D'GLEW_APPLE_GLX'
@@ -15,6 +14,7 @@ LDFLAGS.STATIC =
 LDFLAGS.DYNAMIC =
 WARN = -Wall -W
 POPT = -O2
+CFLAGS.EXTRA += -fPIC
 BIN.SUFFIX =
 LIB.SONAME    = lib$(NAME).$(SO_MAJOR).dylib
 LIB.DEVLNK    = lib$(NAME).dylib

config/Makefile.darwin-ppc

@@ -3,7 +3,6 @@ CC = cc
 LD = cc
 CFLAGS.EXTRA = -arch ppc -dynamic -fno-common
 #CFLAGS.EXTRA += -no-cpp-precomp
-PICFLAG = -fPIC
 LDFLAGS.EXTRA = -arch ppc
 ifneq (undefined, $(origin GLEW_APPLE_GLX))
 CFLAGS.EXTRA += -I/usr/X11R6/include -D'GLEW_APPLE_GLX'
@@ -15,6 +14,7 @@ LDFLAGS.STATIC =
 LDFLAGS.DYNAMIC =
 WARN = -Wall -W
 POPT = -O2
+CFLAGS.EXTRA += -fPIC
 BIN.SUFFIX =
 LIB.SONAME    = lib$(NAME).$(SO_MAJOR).dylib
 LIB.DEVLNK    = lib$(NAME).dylib

config/Makefile.darwin-x86_64

@@ -3,7 +3,6 @@ CC = cc
 LD = cc
 CFLAGS.EXTRA = -arch x86_64 -dynamic -fno-common
 #CFLAGS.EXTRA += -no-cpp-precomp
-PICFLAG = -fPIC
 LDFLAGS.EXTRA = -arch x86_64
 ifneq (undefined, $(origin GLEW_APPLE_GLX))
 CFLAGS.EXTRA += -I/usr/X11R6/include -D'GLEW_APPLE_GLX'
@@ -15,6 +14,7 @@ LDFLAGS.STATIC =
 LDFLAGS.DYNAMIC =
 WARN = -Wall -W
 POPT = -O2
+CFLAGS.EXTRA += -fPIC
 BIN.SUFFIX =
 LIB.SONAME    = lib$(NAME).$(SO_MAJOR).dylib
 LIB.DEVLNK    = lib$(NAME).dylib

config/Makefile.gnu

@@ -1,7 +1,6 @@
 NAME = $(GLEW_NAME)
 CC = cc
 LD = cc
-PICFLAG = -fPIC
 LDFLAGS.EXTRA = -L/usr/X11R6/lib
 LDFLAGS.GL = -lXmu -lXi -lGL -lXext -lX11
 LDFLAGS.STATIC = -Wl,-Bstatic
@@ -9,6 +8,7 @@ LDFLAGS.DYNAMIC = -Wl,-Bdynamic
 NAME = GLEW
 WARN = -Wall -W
 POPT = -O2
+CFLAGS.EXTRA += -fPIC
 BIN.SUFFIX =
 LIB.SONAME    = lib$(NAME).so.$(SO_MAJOR)
 LIB.DEVLNK    = lib$(NAME).so

config/Makefile.kfreebsd

@@ -1,7 +1,6 @@
 NAME = $(GLEW_NAME)
 CC = cc
 LD = cc
-PICFLAG = -fPIC
 LDFLAGS.EXTRA = -L/usr/X11R6/lib
 LDFLAGS.GL = -lXmu -lXi -lGL -lXext -lX11
 LDFLAGS.STATIC = -Wl,-Bstatic
@@ -9,6 +8,7 @@ LDFLAGS.DYNAMIC = -Wl,-Bdynamic
 NAME = GLEW
 WARN = -Wall -W
 POPT = -O2
+CFLAGS.EXTRA += -fPIC
 BIN.SUFFIX =
 LIB.SONAME    = lib$(NAME).so.$(SO_MAJOR)
 LIB.DEVLNK    = lib$(NAME).so

config/Makefile.linux

@@ -1,7 +1,6 @@
 NAME = $(GLEW_NAME)
 CC = cc
 LD = cc
-PICFLAG = -fPIC
 M_ARCH ?= $(shell uname -m)
 ifeq (x86_64,${M_ARCH})
 LDFLAGS.EXTRA = -L/usr/X11R6/lib64 -L/usr/lib64
@@ -16,6 +15,7 @@ LDFLAGS.DYNAMIC = -Wl,-Bdynamic
 NAME = GLEW
 WARN = -Wall -W
 POPT = -O2
+CFLAGS.EXTRA += -fPIC
 BIN.SUFFIX =
 LIB.SONAME = lib$(NAME).so.$(SO_MAJOR)
 LIB.DEVLNK = lib$(NAME).so