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Allow to use libgcc instead of libtcc1

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This patch adds a switch --with-libgcc to configure.
When passed it prevents libtcc1.a from being built and links to
/lib/libgcc_s.so.1 instead of PREFIX/lib/tcc/libtcc1.a.

It will work on ARM when using libgcc from GCC >= 4.2.0.
Prior versions don't have the __floatun[sd]i[sdx]f functions.

It won't work on i386 because of two missing symbols emitted when
floats are cast to integers, but users can provide those symbols
(global short constants) in their code if needed.

  Daniel
This commit is contained in:
Daniel Glöckner
2008-09-05 21:08:37 +02:00
committed by grischka
parent 256f6e6200
commit 15e0dc08a6
3 changed files with 28 additions and 4 deletions
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17
Makefile
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@ -51,11 +51,17 @@ PROGS+=c67-tcc$(EXESUF) i386-win32-tcc$(EXESUF)
endif
endif
ifdef CONFIG_USE_LIBGCC
LIBTCC1=
else
LIBTCC1=libtcc1.a
endif
# run local version of tcc with local libraries and includes
TCC=./tcc -B. -I.
all: $(PROGS) \
libtcc1.a $(BCHECK_O) tcc-doc.html tcc.1 libtcc.a \
$(LIBTCC1) $(BCHECK_O) tcc-doc.html tcc.1 libtcc.a \
libtcc_test$(EXESUF)
Makefile: config.mak
@ -214,7 +220,7 @@ bcheck.o: bcheck.c
install: tcc_install libinstall
tcc_install: $(PROGS) tcc.1 libtcc1.a $(BCHECK_O) tcc-doc.html
tcc_install: $(PROGS) tcc.1 $(LIBTCC1) $(BCHECK_O) tcc-doc.html
mkdir -p "$(DESTDIR)$(bindir)"
$(INSTALL) -s -m755 $(PROGS) "$(DESTDIR)$(bindir)"
ifndef CONFIG_WIN32
@ -225,11 +231,14 @@ endif
mkdir -p "$(DESTDIR)$(tccdir)/include"
ifdef CONFIG_WIN32
mkdir -p "$(DESTDIR)$(tccdir)/lib"
$(INSTALL) -m644 libtcc1.a win32/lib/*.def "$(DESTDIR)$(tccdir)/lib"
$(INSTALL) -m644 $(LIBTCC1) win32/lib/*.def "$(DESTDIR)$(tccdir)/lib"
cp -r win32/include/. "$(DESTDIR)$(tccdir)/include"
cp -r win32/examples/. "$(DESTDIR)$(tccdir)/examples"
else
$(INSTALL) -m644 libtcc1.a $(BCHECK_O) "$(DESTDIR)$(tccdir)"
ifndef CONFIG_USE_LIBGCC
$(INSTALL) -m644 libtcc1.a "$(DESTDIR)$(tccdir)"
endif
$(INSTALL) -m644 $(BCHECK_O) "$(DESTDIR)$(tccdir)"
$(INSTALL) -m644 stdarg.h stddef.h stdbool.h float.h varargs.h \
tcclib.h "$(DESTDIR)$(tccdir)/include"
endif