1 # Makefile for GNU F77 compiler runtime.
2 # Copyright (C) 1995-1998 Free Software Foundation, Inc.
3 # Contributed by Dave Love (d.love@dl.ac.uk).
5 #This file is part of GNU Fortran.
7 #GNU Fortran is free software; you can redistribute it and/or modify
8 #it under the terms of the GNU General Public License as published by
9 #the Free Software Foundation; either version 2, or (at your option)
12 #GNU Fortran is distributed in the hope that it will be useful,
13 #but WITHOUT ANY WARRANTY; without even the implied warranty of
14 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 #GNU General Public License for more details.
17 #You should have received a copy of the GNU General Public License
18 #along with GNU Fortran; see the file COPYING. If not, write to
19 #the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
24 #### Start of system configuration section. ####
29 exec_prefix = @exec_prefix@
30 target_alias = @target_alias@
31 gcc_version = @gcc_version@
32 gcc_version_trigger = @gcc_version_trigger@
34 libdir = $(exec_prefix)/lib
35 libsubdir = $(libdir)/gcc-lib/$(target_alias)/$(gcc_version)
37 # Multilib support variables.
45 # Not configured per top-level version, since that doesn't get passed
46 # down at configure time, but overrridden by the top-level install
49 INSTALL_PROGRAM = @INSTALL_PROGRAM@
50 INSTALL_DATA = @INSTALL_DATA@
60 # List of variables to pass to sub-makes.
61 # Quote this way so that it can be used to set shell variables too.
62 # Currently no use for PICFLAG, RUNTESTFLAGS -- check usage.
66 CPPFLAGS='$(CPPFLAGS)' \
69 PICFLAG='$(PICFLAG)' \
70 RUNTESTFLAGS='$(RUNTESTFLAGS)'
74 SUBDIRS = libI77 libF77 libU77
76 F2CEXT = abort derf derfc ef1asc ef1cmc erf erfc exit getarg getenv iargc \
77 signal system flush ftell fseek access besj0 besj1 besjn besy0 besy1 \
78 besyn chdir chmod ctime date dbesj0 dbesj1 dbesjn dbesy0 dbesy1 dbesyn \
79 dtime etime fdate fgetc fget flush1 fnum fputc fput fstat gerror \
80 getcwd getgid getlog getpid getuid gmtime hostnm idate ierrno irand \
81 isatty itime kill link lnblnk lstat ltime mclock perror rand rename \
82 secnds second sleep srand stat symlnk time ttynam umask unlink \
87 # The logic here is partly dictated by the desire to keep the lib?77
88 # subdirs for compatibility with the Netlib version and because libU77
89 # has a different copyright; then the libe77 bit (EXTERNALly-callable
90 # versions) is funny. Given that, as well as keeping things as simple
91 # as possible we want (at least) the following:
92 # * Allow make to be run at the top level (all-target-libf2c), at this
93 # level, or the subdirs of this level. In the latter case we only
94 # compile, rather than updating libg2c.a;
95 # * A robust set of dependencies, so that we rebuild (as little as
96 # possible) if a configuration file, g2c.h or any lib?77/*.c file
98 # * Avoid unnecessary running of ar and ranlib;
99 # * Expose parallelism where reasonable, but not as a priority.
101 # The intended top-level target here does a non-multilib build (via
102 # the dependency) and then (perhaps) builds multilibs.
105 $(MULTIDO) $(FLAGS_TO_PASS) multi-do DO="all-unilib"
107 # `all-unilib' is the overall target in the absence of multilibs,
108 # meant to be invoked via multi-do for multilibs.
110 # Its dependencies can be satisfied in parallel. The [fiu]77 targets
111 # update stamp files (see the subdir makefiles) which the $(LIBG2C)
112 # target checks in the sub make to decide whether to run ar/ranlib.
113 # (Probably only one stamp file is really needed.) The stamp files
114 # s-lib[fiu]77 are intentionally not targets, since we're only meant
115 # to come in at the level of this target. The [fiu]77 targets always
116 # invoke sub makes to check dependencies in the subdirs, else we'd
117 # have to maintain them at this level; we live with the overhead of
118 # some recursive makes which may do nothing.
120 all-unilib: i77 f77 u77 s-libe77
121 $(MAKE) $(FLAGS_TO_PASS) $(LIBG2C)
125 # This target should normally only get invoked via `all-unilib' --
126 # after all's well in the subdirs -- actually to assemble the library.
127 # The stamp file dependencies are just to check whether libg2c.a is
128 # up-to-date (to avoid running ar regardless) -- the files should
129 # always have been created by a successful `all-unilib'.
131 $(LIBG2C): s-libi77 s-libf77 s-libu77 s-libe77
134 for i in $(SUBDIRS); \
135 do (cd $$i && $(MAKE) $(FLAGS_TO_PASS) LIBG2C=../$(LIBG2C) archive); \
137 objs=""; for i in $(F2CEXT); do objs="$$objs libE77/L$$i.o"; done; \
138 $(AR) $(AR_FLAGS) $(LIBG2C) $$objs
142 cd libI77; $(MAKE) $(FLAGS_TO_PASS) all
145 cd libF77; $(MAKE) $(FLAGS_TO_PASS) all
148 cd libU77; $(MAKE) $(FLAGS_TO_PASS) all
151 if [ -d libE77 ]; then rm -f libE77/*.o; else mkdir libE77; fi
152 for name in $(F2CEXT); \
155 $(CC) -c -I. -I$(srcdir) -I../../include $(CPPFLAGS) $(CFLAGS) \
156 -DL$${name} $(srcdir)/f2cext.c \
157 -o libE77/L$${name}.o; \
158 if [ $$? -eq 0 ] ; then true; else exit 1; fi; \
160 echo timestamp >s-libe77
164 ${srcdir}/configure: configure.in
166 cd $(srcdir) && autoconf
168 # Dependence on Makefile serializes for parallel make.
169 g2c.h: g2c.hin config.status Makefile
170 # Might try to avoid rebuilding everything if Makefile or configure
171 # changes and g2c.h doesn't; see also the Makefile rule. Should
172 # depend on another stamp file rather than using the commented-out
173 # lines below, since g2c.h isn't necessarily brought up to date.
175 $(SHELL) config.status
176 # $(srcdir)/../move-if-change g2c.h g2c.x && mv g2c.x g2c.h
178 Makefile: Makefile.in config.status
179 # Autoconf doc uses `./config.status'. Is there a good reason to use $(SHELL)?
180 $(SHELL) config.status
182 config.status: configure $(gcc_version_trigger)
183 # Make sure we don't pick up a site config file and that configure
184 # gets run with correct values of variables such as CC.
185 CONFIG_SITE=no-such-file $(FLAGS_TO_PASS) \
186 $(SHELL) config.status --recheck
188 info install-info clean-info dvi TAGS dist installcheck installdirs:
191 cd libU77; $(MAKE) G77DIR=../../../gcc/ check
194 $(INSTALL_DATA) $(LIBG2C) $(libsubdir)/$(MULTISUBDIR)/$(LIBG2C).n
195 ( cd $(libsubdir)/$(MULTISUBDIR) ; $(RANLIB) $(LIBG2C).n )
196 mv -f $(libsubdir)/$(MULTISUBDIR)/$(LIBG2C).n $(libsubdir)/$(MULTISUBDIR)/$(LIBG2C)
197 $(INSTALL_DATA) g2c.h $(libsubdir)/include/g2c.h
198 @if [ -f f2c-install-ok -o -f $(srcdir)/f2c-install-ok ]; then \
200 echo 'Warning: g77 no longer installs libf2c.a or f2c.h.'; \
201 echo ' You must do so yourself. For more information,'; \
202 echo ' read "Distributing Binaries" in the g77 docs.'; \
203 echo ' (To turn off this warning, delete the file'; \
204 echo ' f2c-install-ok in the source or build directory.)'; \
207 $(MULTIDO) $(FLAGS_TO_PASS) multi-do DO="$@"
210 $(MAKE) INSTALL_PROGRAM='$(INSTALL_PROGRAM) -s' install
213 rm -f $(libsubdir)/$(MULTISUBDIR)/include/g2c.h $(libsubdir)/$(MULTISUBDIR)/$(LIBG2C)
214 $(MULTIDO) $(FLAGS_TO_PASS) multi-do DO="$@"
218 $(MAKE) DO=$@ DODIRS="$(SUBDIRS)" $(FLAGS_TO_PASS) subdir_do; \
219 $(MULTICLEAN) multi-clean DO=$@
220 rm -fr libE77 s-libe77
224 $(MAKE) DO=$@ DODIRS="$(SUBDIRS)" $(FLAGS_TO_PASS) subdir_do; \
225 $(MULTICLEAN) multi-clean DO=$@
228 rm -f Makefile config.cache config.status g2c.h s-libe77
229 $(MAKE) DO=$@ DODIRS="$(SUBDIRS)" $(FLAGS_TO_PASS) subdir_do; \
230 $(MULTICLEAN) multi-clean DO=distclean
236 .PHONY: rebuilt mostlyclean clean distclean maintainer-clean all \
237 i77 f77 u77 check uninstall install-strip dist \
238 installcheck installdirs all-unilib
241 @rootpre=`pwd`/; export rootpre; \
242 srcrootpre=`cd $(srcdir); pwd`/; export srcrootpre; \
243 for i in .. $(DODIRS); do \
244 if [ x$$i != x.. ]; then \
245 if [ -f ./$$i/Makefile ]; then \
246 if (cd ./$$i; $(MAKE) $(FLAGS_TO_PASS) $(DO)); then \
255 # multidoings may be added here by configure.