#25 Honor LDFLAGS

[Ryan Carsten Schmidt]

Please honor LDFLAGS set at configure time.

[Bill Spitzak]

Should that override the attempt in the makefile to use the fltk ldflags? Or be appended to it?

[Ryan Carsten Schmidt]

I would probably append user-supplied LDFLAGS after any existing flags. Here's what I've used:

--- makeinclude.in.orig 2014-11-20 15:20:11.000000000 -0600
+++ makeinclude.in  2018-12-07 10:06:58.000000000 -0600
@@ -22,4 +22,6 @@
 CXXFLAGS_D =@CXXFLAGS_D@

 # libraries to link with:
+LDFLAGS    =@LDFLAGS@
+
 INSTALL    =@INSTALL@

--- Makefile.orig   2015-02-09 17:12:19.000000000 -0600
+++ Makefile    2018-12-07 10:15:52.000000000 -0600
@@ -17,7 +17,7 @@
 all:   $(PROGRAM)

 $(PROGRAM) : $(OBJECTS)
-   $(CXX) -o $(PROGRAM) $(OBJECTS) `fltk-config --ldflags`
+   $(CXX) -o $(PROGRAM) $(OBJECTS) `fltk-config --ldflags` $(CXXFLAGS) $(LDFLAGS)

 configure: configure.in
    autoconf

I guess equivalent changes are also needed for the "_D" varieties.

I also added CXXFLAGS because that's where a flag like -stdlib=... is likely to be supplied by the user, and that flag must be used both a compile time and at link time.

[Bill Spitzak]

Fixed as shown above.