Remove leftover generated .h files after config.status changed. * m4/alloca.m4 (gl_FUNC_ALLOCA): New automake conditional GL_GENERATE_ALLOCA_H. * modules/alloca-opt (Makefile.am): Remove alloca.h if GL_GENERATE_ALLOCA_H evaluates to false. * m4/argz.m4 (gl_FUNC_ARGZ): New automake conditional GL_GENERATE_ARGZ_H. * modules/argz (Makefile.am): Remove argz.h if GL_GENERATE_ARGZ_H evaluates to false. * m4/byteswap.m4 (gl_BYTESWAP): New automake conditional GL_GENERATE_BYTESWAP_H. * modules/byteswap (Makefile.am): Remove byteswap.h if GL_GENERATE_BYTESWAP_H evaluates to false. * m4/errno_h.m4 (gl_HEADER_ERRNO_H): New automake conditional GL_GENERATE_ERRNO_H. * modules/errno (Makefile.am): Remove errno.h if GL_GENERATE_ERRNO_H evaluates to false. * m4/float_h.m4 (gl_FLOAT_H): New automake conditional GL_GENERATE_FLOAT_H. * modules/float (Makefile.am): Remove float.h if GL_GENERATE_FLOAT_H evaluates to false. * m4/fnmatch.m4 (gl_FUNC_FNMATCH_POSIX): New automake conditional GL_GENERATE_FNMATCH_H. * modules/fnmatch (Makefile.am): Remove fnmatch.h if GL_GENERATE_FNMATCH_H evaluates to false. * m4/glob.m4 (gl_GLOB_SUBSTITUTE, gl_GLOB): New automake conditional GL_GENERATE_GLOB_H. * modules/glob (Makefile.am): Remove glob.h if GL_GENERATE_GLOB_H evaluates to false. * m4/iconv_h.m4 (gl_REPLACE_ICONV_H, gl_ICONV_H_DEFAULTS): New automake conditional GL_GENERATE_ICONV_H. * modules/iconv-h (Makefile.am): Remove iconv.h if GL_GENERATE_ICONV_H evaluates to false. * m4/netinet_in_h.m4 (gl_HEADER_NETINET_IN): New automake conditional GL_GENERATE_NETINET_IN_H. * modules/netinet_in (Makefile.am): Remove netinet/in.h if GL_GENERATE_NETINET_IN_H evaluates to false. * m4/pthread.m4 (gl_PTHREAD_CHECK): Set PTHREAD_H here. New automake conditional GL_GENERATE_PTHREAD_H. (gl_PTHREAD_DEFAULTS): Don't set PTHREAD_H here. * modules/pthread (Makefile.am): Remove pthread.h if GL_GENERATE_PTHREAD_H evaluates to false. * m4/sched_h.m4 (gl_SCHED_H): New automake conditional GL_GENERATE_SCHED_H. * modules/sched (Makefile.am): Remove sched.h if GL_GENERATE_SCHED_H evaluates to false. * m4/selinux-context-h.m4 (gl_HEADERS_SELINUX_CONTEXT_H): New automake conditional GL_GENERATE_SELINUX_CONTEXT_H. * modules/selinux-h (Makefile.am): Remove selinux/context.h if GL_GENERATE_SELINUX_CONTEXT_H evaluates to false. * m4/stdarg.m4 (gl_STDARG_H): New automake conditional GL_GENERATE_STDARG_H. * modules/stdarg (Makefile.am): Remove stdarg.h if GL_GENERATE_STDARG_H evaluates to false. * m4/stdbool.m4 (AM_STDBOOL_H): New automake conditional GL_GENERATE_STDBOOL_H. * modules/stdbool (Makefile.am): Remove stdbool.h if GL_GENERATE_STDBOOL_H evaluates to false. * m4/stddef_h.m4 (gl_STDDEF_H): Set STDDEF_H here. New automake conditional GL_GENERATE_STDDEF_H. (gl_STDDEF_H_DEFAULTS): Don't set STDDEF_H here. * modules/stddef (Makefile.am): Remove stddef.h if GL_GENERATE_STDDEF_H evaluates to false. * m4/stdint.m4 (gl_STDINT_H): New automake conditional GL_GENERATE_STDINT_H. * modules/stdint (Makefile.am): Remove stdint.h if GL_GENERATE_STDINT_H evaluates to false. * m4/sysexits.m4 (gl_SYSEXITS): New automake conditional GL_GENERATE_SYSEXITS_H. * modules/sysexits (Makefile.am): Remove sysexits.h if GL_GENERATE_SYSEXITS_H evaluates to false. Reported by Karl Berry and Ralf Wildenhues.

Description:
Memory allocation on the stack, as an optional optimization.
It allows using the alloca() macro if and only if the autoconf tests define
HAVE_ALLOCA.

Files:
lib/alloca.in.h
m4/alloca.m4

Depends-on:

configure.ac:
gl_FUNC_ALLOCA

Makefile.am:
BUILT_SOURCES += $(ALLOCA_H)

# We need the following in order to create <alloca.h> when the system
# doesn't have one that works with the given compiler.
if GL_GENERATE_ALLOCA_H
alloca.h: alloca.in.h $(top_builddir)/config.status
	$(AM_V_GEN)rm -f $@-t $@ && \
	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
	  cat $(srcdir)/alloca.in.h; \
	} > $@-t && \
	mv -f $@-t $@
else
alloca.h: $(top_builddir)/config.status
	rm -f $@
endif
MOSTLYCLEANFILES += alloca.h alloca.h-t

Include:
<alloca.h>

License:
LGPLv2+

Maintainer:
bug-gnulib@gnu.org