Change F77 to FC; defined CC, FC (and LD for ext func) in site_specif…

…ic.mk files; update README.md with info on these changes

git-svn-id: file:///home/users/tmap/svn/repos/ferret/branches/pyferret@26201 fdbf22ae-c210-0410-be80-ca943da6b8f8

bin/build_fonts/unix/Makefile

@@ -4,7 +4,7 @@
 #    builds and runs the executable to write the
 #    binary character and symbol font files. 
 #    Just use long lists of files.
-#    Expects environment variables F77 and PLOTFONTS to be defined.
+#    Expects environment variables FC and PLOTFONTS to be defined.
 #    No need for any compiler flags.
 
 include ../../../site_specific.mk
@@ -13,7 +13,7 @@ include ../../../platform_specific.mk.$(BUILDTYPE)
 all:    binary 
 
 binary:	binary.F
-	$(F77) $(FFLAGS) -o binary binary.F
+	$(FC) $(FFLAGS) -o binary binary.F
 	./binary   in_fnt01a.chr  fnt01.chr
 	./binary   in_fnt02a.chr  fnt02.chr
 	./binary   in_fnt03a.chr  fnt03.chr

external_functions/cat/Makefile

@@ -26,7 +26,7 @@ include ../ef_utility/platform_specific.mk.$(BUILDTYPE)
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $*.o $(SYSLIBS) -o $*.so
 
 #

external_functions/closest_in_list/Makefile

@@ -25,7 +25,7 @@ include ../ef_utility/platform_specific.mk.$(BUILDTYPE)
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $*.o $(SYSLIBS) -o $*.so
 
 #

external_functions/cmprsi_by/Makefile

@@ -30,7 +30,7 @@ include ../ef_utility/platform_specific.mk.$(BUILDTYPE)
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $*.o $(SYSLIBS) -o $*.so
 
 #

external_functions/contributed/Makefile

@@ -33,7 +33,7 @@ include ../ef_utility/platform_specific.mk.$(BUILDTYPE)
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $*.o $(SYSLIBS) -o $*.so
 
 #

external_functions/convolve/Makefile

@@ -28,7 +28,7 @@ include ../ef_utility/platform_specific.mk.$(BUILDTYPE)
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $*.o $(SYSLIBS) -o $*.so
 
 #

external_functions/date_and_time/Makefile

@@ -37,7 +37,7 @@ DAT_OBJS = date_decode.o time_decode.o secs_to_ymdhms.o
 	$(LD) $(LD_DYN_FLAGS) $(DAT_OBJS) $*.o $(SYSLIBS) -o $*.so
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $(DAT_OBJS) $*.o $(SYSLIBS) -o $*.so
 
 #

external_functions/decimate/Makefile

@@ -19,7 +19,7 @@ SUB_OBJS = piecewise_subs.o
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c  $<
+	$(FC) $(FFLAGS) -c  $<
 	$(LD) $(LD_DYN_FLAGS) $(SUB_OBJS) $*.o $(SYSLIBS) -o $*.so
 
 #

external_functions/ef_utility/platform_specific.mk.i386-linux

@@ -9,16 +9,12 @@
 
 INCLUDES	= -I. -I../ef_utility -I../ef_utility/ferret_cmn
 
-CC		= $(shell which gcc)
 CFLAGS		= -fPIC -m32 -O -Ddouble_p $(INCLUDES)
 
-FC		= $(shell which gfortran)
-F77		= $(shell which gfortran)
 FFLAGS		= -fPIC -m32 -O -Ddouble_p -fno-second-underscore \
 		  -fno-backslash -fdollar-ok -ffixed-line-length-132 \
 		  -fdefault-real-8 -fdefault-double-8 -malign-double $(INCLUDES)
 
-LD		= $(shell which gfortran)
 LD_DYN_FLAGS	= -fPIC -m32 -shared -Wl,--no-undefined
 SYSLIBS		= ../ef_utility/copy_ferret_ef_mem_subsc.o \
 		  -L$(INSTALL_FER_DIR)/lib/$(PYTHON_EXE)/site-packages/pyferret \

external_functions/ef_utility/platform_specific.mk.intel-mac

@@ -9,16 +9,12 @@
 
 INCLUDES	= -I. -I../ef_utility -I../ef_utility/ferret_cmn
 
-CC		= $(shell which clang)
 CFLAGS		= -fPIC -O -Ddouble_p $(INCLUDES)
 
-FC		= $(shell which gfortran)
-F77		= $(shell which gfortran)
 FFLAGS		= -fPIC -O -Ddouble_p -fno-second-underscore \
 		  -fno-backslash -fdollar-ok -ffixed-line-length-132 \
 		  -fdefault-real-8 -fdefault-double-8 -O $(INCLUDES)
 
-LD		= $(shell which gfortran)
 LD_DYN_FLAGS    = -fPIC -bundle -undefined dynamic_lookup
 SYSLIBS		= ../ef_utility/copy_ferret_ef_mem_subsc.o 
 

external_functions/ef_utility/platform_specific.mk.x86_64-linux

@@ -9,16 +9,12 @@
 
 INCLUDES	= -I. -I../ef_utility -I../ef_utility/ferret_cmn
 
-CC		= $(shell which gcc)
 CFLAGS		= -fPIC -m64 -O -Ddouble_p $(INCLUDES)
 
-FC		= $(shell which gfortran)
-F77		= $(shell which gfortran)
 FFLAGS		= -fPIC -m64 -O -Ddouble_p -fno-second-underscore \
 		  -fno-backslash -fdollar-ok -ffixed-line-length-132 \
 		  -fdefault-real-8 -fdefault-double-8 -O $(INCLUDES)
 
-LD		= $(shell which gfortran)
 LD_DYN_FLAGS	= -fPIC -m64 -shared -Wl,--no-undefined
 # Some compilers add an OS spec between libpyferret and .so
 # This also takes care of whether to use lib or lib64

external_functions/ef_utility/site_specific.mk.in

@@ -33,6 +33,28 @@ BUILDTYPE = x86_64-linux
 # INSTALL_FER_DIR = $(HOME)/PyFerret
 INSTALL_FER_DIR = $(FER_DIR)
 
+## =========================
+## C and Fortran compilers to use.  The construct "$(shell which gcc)" assigns
+## the response to "which gcc" run from a Bourne shell (such as bash).
+## When compiling for Mac OS X, one may wish to use clang instead of gcc.
+## If you wish to use values already defined in you shell environment when 
+## you run make, comment out all definitions of CC and FC (do NOT leave blank).
+## =========================
+# CC = $(shell which clang)
+CC = $(shell which gcc)
+FC = $(shell which gfortran)
+
+## =========================
+## Linker used to generate executables and shared-object libraries.
+## Normally the Fortran compiler is used which then calls the actual
+## linker with appropriate flags and system-level Fortran libraries.
+## The construct "$(shell which gfortran)" assigns the response to 
+## "which gfortran" run from a Bourne shell (such as bash).
+## If you wish to use a value already defined in you shell environment when 
+## you run make, comment out all definitions of LD (do NOT leave blank).
+## =========================
+LD = $(shell which gfortran)
+
 ## =========================
 ## Python version used by PyFerret
 ## =========================

external_functions/eof/Makefile

@@ -38,7 +38,7 @@ SUB_OBJS = eofsubs.o
 #   once eof_space etc are linked into Ferret dont need SUB_OBJS
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $*.o $(SYSLIBS) -o $*.so
 
 #

external_functions/examples/Makefile

@@ -32,7 +32,7 @@ include ../ef_utility/platform_specific.mk.$(BUILDTYPE)
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c  $<
+	$(FC) $(FFLAGS) -c  $<
 	$(LD) $(LD_DYN_FLAGS) $*.o $(SYSLIBS) -o $*.so
 
 #

external_functions/extrema/Makefile

@@ -31,10 +31,10 @@ include ../ef_utility/platform_specific.mk.$(BUILDTYPE)
 #
 
 .F.o:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $*.o minminmax.o maxminmax.o $(SYSLIBS) -o $*.so
 
 #

external_functions/featurecollections/Makefile

@@ -17,7 +17,7 @@ include ../ef_utility/platform_specific.mk.$(BUILDTYPE)
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c  $<
+	$(FC) $(FFLAGS) -c  $<
 	$(LD) $(LD_DYN_FLAGS) $*.o $(SYSLIBS) -o $*.so
 
 #

external_functions/fft/Makefile

@@ -9,7 +9,7 @@
 #  remove refs to ef_utility/*.o  (now in ferret executable)
 #
 # 2/2001  debug macros
-# 1/2002  need $(F77) in .F.so rule
+# 1/2002  need $(FC) in .F.so rule
 #         and compile ffta_sample, fftp_sample functions
 # 7/2012  Do not need a special platform_specific file.
 
@@ -37,7 +37,7 @@ SUB_OBJS = fftinv_subs.o fftsubs.o
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $(SUB_OBJS) $*.o $(SYSLIBS) -o $*.so
 
 #

external_functions/godae_obs/Makefile

@@ -34,7 +34,7 @@ GOB_OBJS = ocn_obs.o
 	$(LD) $(LD_DYN_FLAGS) $(GOB_OBJS) $*.o $(SYSLIBS) -o $*.so
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $(GOB_OBJS) $*.o $(SYSLIBS) -o $*.so
 
 #

external_functions/gridding/Makefile

@@ -32,9 +32,12 @@ SUB_OBJS = modscatminmax.o nobsxytv.o scat2grid_subs_mask.o
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c  $<
+	$(FC) $(FFLAGS) -c  $<
 	$(LD) $(LD_DYN_FLAGS) $(SUB_OBJS) $*.o $(SYSLIBS) -o $*.so
 
+.F.o:
+	$(FC) $(FFLAGS) -c  $<
+
 #
 # Targets
 #

external_functions/hinterp/Makefile

@@ -32,9 +32,15 @@ include ../ef_utility/platform_specific.mk.$(BUILDTYPE)
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $*.o $(SYSLIBS) -o $*.so
 
+.c.o:
+	$(CC) $(CFLAGS) -c $<
+
+.F.o:
+	$(FC) $(FFLAGS) -c $<
+
 #
 # Targets
 #

external_functions/lanczos/Makefile

@@ -27,7 +27,7 @@ include ../ef_utility/platform_specific.mk.$(BUILDTYPE)
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $*.o $(SYSLIBS) -o $*.so
 
 #

external_functions/las/Makefile

@@ -32,9 +32,15 @@ include ../ef_utility/platform_specific.mk.$(BUILDTYPE)
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $*.o $(SYSLIBS) -o $*.so
 
+.c.o:
+	$(CC) $(CFLAGS) -c $<
+
+.F.o:
+	$(FC) $(FFLAGS) -c $<
+
 #
 # Targets
 #

external_functions/ncedit/Makefile

@@ -32,9 +32,12 @@ include ../ef_utility/platform_specific.mk.$(BUILDTYPE)
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $*.o $(SYSLIBS) -o $*.so
 
+.F.o:
+	$(FC) $(FFLAGS) -c $<
+
 #
 # Targets
 #

external_functions/obs_viz/Makefile

@@ -26,7 +26,7 @@ DAT_OBJS = flag2ddups.o
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $(DAT_OBJS) $*.o $(SYSLIBS) -o $*.so
 
 #

external_functions/pnpoly/Makefile

@@ -25,9 +25,15 @@ SUB_OBJS = pnpoly_subs.o
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $(SUB_OBJS) $*.o $(SYSLIBS) -o $*.so
 
+.c.o:
+	$(CC) $(CFLAGS) -c $<
+
+.F.o:
+	$(FC) $(FFLAGS) -c $<
+
 #
 # Targets
 #

external_functions/romea/Makefile

@@ -31,7 +31,7 @@ SUB_OBJS = rr_density.o
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $(SUB_OBJS) $*.o $(SYSLIBS) -o $*.so
 
 #

external_functions/sort/Makefile

@@ -32,9 +32,15 @@ include ../ef_utility/platform_specific.mk.$(BUILDTYPE)
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $*.o $(SYSLIBS) -o $*.so
 
+.c.o:
+	$(CC) $(CFLAGS) -c $<
+
+.F.o:
+	$(FC) $(FFLAGS) -c $<
+
 #
 # Targets
 #

external_functions/statistics/Makefile

@@ -31,9 +31,15 @@ include ../ef_utility/platform_specific.mk.$(BUILDTYPE)
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $*.o $(SYSLIBS) -o $*.so
 
+.c.o:
+	$(CC) $(CFLAGS) -c $<
+
+.F.o:
+	$(FC) $(FFLAGS) -c $<
+
 #
 # Targets
 #

external_functions/stringfcns/Makefile

@@ -32,9 +32,15 @@ include ../ef_utility/platform_specific.mk.$(BUILDTYPE)
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $*.o $(SYSLIBS) -o $*.so
 
+.c.o:
+	$(CC) $(CFLAGS) -c $<
+
+.F.o:
+	$(FC) $(FFLAGS) -c $<
+
 #
 # Targets
 #

external_functions/tax_times/Makefile

@@ -28,7 +28,7 @@ include ../ef_utility/platform_specific.mk.$(BUILDTYPE)
 #
 
 .F.so:
-	$(F77) $(FFLAGS) -c $<
+	$(FC) $(FFLAGS) -c $<
 	$(LD) $(LD_DYN_FLAGS) $*.o $(SYSLIBS) -o $*.so
 
 #