Improve portability of Make (#154)

Several options passed to $(CC) are not portable, e.g., for HP aCC.
Move them to variables.

diff --git a/Makefile b/Makefile
index e3310f7cfe2c4795a733d60606e2a07ed4846485..2f33df15b700c58464443fbf29d5b36a409b4880 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -13,6 +13,8 @@ PICFLAG = -fPIC
 C99FLAG = -std=c99
 WCFLAGS = -Wall -pedantic
 UCFLAGS = $(CPPFLAGS) $(CFLAGS) $(PICFLAG) $(C99FLAG) $(WCFLAGS) -DUTF8PROC_EXPORTS $(UTF8PROC_DEFINES)
+LDFLAG_SHARED = -shared
+SOFLAG = -Wl,-soname
 
 # shared-library version MAJOR.MINOR.PATCH ... this may be *different*
 # from the utf8proc version number because it indicates ABI compatibility,
@@ -79,7 +81,7 @@ libutf8proc.a: utf8proc.o
        $(AR) rs libutf8proc.a utf8proc.o
 
 libutf8proc.so.$(MAJOR).$(MINOR).$(PATCH): utf8proc.o
-       $(CC) $(LDFLAGS) -shared -o $@ -Wl,-soname -Wl,libutf8proc.so.$(MAJOR) utf8proc.o
+       $(CC) $(LDFLAGS) $(LDFLAG_SHARED) -o $@ $(SOFLAG) -Wl,libutf8proc.so.$(MAJOR) utf8proc.o
        chmod a-x $@
 
 libutf8proc.so: libutf8proc.so.$(MAJOR).$(MINOR).$(PATCH)