Mail Archives: cygwin/2010/05/21/11:21:55
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Message-ID: | <SNT129-W506D793A069A9C8255888187E40@phx.gbl>
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From: | bo yu <enviyub2 AT hotmail DOT com>
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To: | <tprince AT computer DOT org>, <cygwin AT cygwin DOT com>
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Subject: | RE: How to compile Fortran 90 subroutine under CYGWIN
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Date: | Fri, 21 May 2010 15:21:40 +0000
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Tim,
=20
Thanks for your reply.
=20
I have the new version of cygwin installed in my computer, in which the g77=
, g++, gcc, gfortran, C++ compiler are in C:\cygwin\bin.
Firstly, I use cygwin build C programs and For77 programs. It works very we=
ll. Now, I add two For90 programs and want to build following program toget=
her in cygwin:
=20
Fortran 77 program: runslhg.f , intrface.f=20
Fortran 90 program: swan_init.f90 , swan_loopstep.f90
C Program: slosh2.c , cstart.c etc.
=20
Step 1: I replace g77 with gfortran in 'makefile',=20
=20
#!/bin/make
SHELL =3D /bin/sh
CC =3D gcc
F77 =3D gfortran
STRIP =3D strip
STD_FLAGS =3D -O3 -Wall -pedantic -ansi
FFLAGS =3D
LD_FLAGS =3D -Wl,--stack,8000000
STD_DEF =3D -D_WINDOWS_ -D_GCC_
STD_INC =3D -I.
STD_LIB =3D -lg2c -L/usr/lib -lm
PRJ_NAME =3D sloshDos
TARGETS =3D $(PRJ_NAME)
CFLAGS =3D $(STD_FLAGS) $(STD_DEF) $(STD_INC)
############################
# FILES
############################
H_SOURCES =3D slosh2.h \
pack.h \
myassert.h \
myutil.h \
savellx.h \
complex.h \
clock.h \
tendian.h \
tio3.h
C_OBJECTS =3D slosh2.o \
pack.o \
myassert.o \
myutil.o \
savellx.o \
complex.o \
clock.o \
tendian.o \
tio3.o
F_OBJECTS =3D runslhg.o \
intrface.o \
swan_init.o \
swan_loopstep.o
=20=20=20=20=20=20=20=20=20=20=20=20
C_MAIN =3D cstart.c
############################
# TARGETS
############################
all: $(TARGETS)
@echo ""
$(PRJ_NAME): $(C_OBJECTS) $(F_OBJECTS) $(C_MAIN) $(LIB_DEPENDS) $(H_SOURCES)
$(CC) $(C_MAIN) $(CFLAGS) $(LD_FLAGS) $(C_OBJECTS) $(F_OBJECTS) $(STD_LIB)=
-o $(PRJ_NAME)
$(STRIP) -s $(PRJ_NAME).exe
install:
cp *.exe ../../bin
clean:
rm -f *.o *.bak *.BAK
############################
# SUFFIXES
############################
.c.o : $(H_SOURCES)
$(CC) -c $(CFLAGS) $<
.f.o:
${F77} -c ${FFLAGS} $<
=20
Step 2: in cygwin, I ran makefile, The error message is
=20
gcc =96c runslhg.f
gcc =96c intrface.f
make: *** No rule to make target =91swan_init.o=92, needed by =91sloshDos=
=92. Stop
=20
Step 3: To test if gfortran compiler wotk for For77 program, I try to build=
C program and For70 programs only using gfortran, I ran makefile, The erro=
r message is
=20
runslhg.o:runslhg.f:,.text+0x4f>: undefined reference to '__gfortran_st_rea=
d'
runslhg.o:runslhg.f:,.text+0x6d>: undefined reference to '__gfortran_transf=
er_character'
runslhg.o:runslhg.f:,.text+0x7b>: undefined reference to '__gfortran_st_rea=
d_done'
=20
=20
My Questions are
(1) Does gfortran work for fortran 90 program only?=20
(2) g77 compiler works for fortran 77 programs. Does g77 work for fortran 9=
0 programs?
(3) How to build C, FOR77 and For 90 programs together in cygwin? How to se=
t the makefile, use seperate command for for77 and for 99?
=20
=20
I would appreciate any suggestion what should I look at.
=20
Thanks again,
Bo
enviyub2 AT hotmail DOT com
=20
=20
=20
----------------------------------------
> Date: Fri, 21 May 2010 05:44:43 -0700
> From: n8tm AT aol DOT com
> To: cygwin AT cygwin DOT com
> Subject: Re: How to compile Fortran 90 subroutine under CYGWIN
>
> On 5/21/2010 5:37 AM, bo yu wrote:
>> .c.o : $(H_SOURCES)
>> $(CC) -c $(CFLAGS) $<
>> .f.o:
>> ${F77} -c ${FFLAGS} $<
>>
>> ------------------------------------------------------------------------=
--------------------
>> Here is the code of =91Testfor90.f90=92
>> --------------------------------------------------
>>
> make noticed that you didn't supply a rule for .f90.o
>
> Why wouldn't you use gfortran? If you are trying to use a cygwin
> installation from several years ago, it's time to update.
>
> --
> Tim Prince
>
>
> --
> Problem reports: http://cygwin.com/problems.html
> FAQ: http://cygwin.com/faq/
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>=20=09=09=20=09=20=20=20=09=09=20=20
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