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https://github.com/netwide-assembler/nasm.git
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97ea4adcf0
config/config.h as generated by autoconf has #undef directives commented out, but the autoheader-generated template contains them, and config/unconfig.h should not contain them. Re-introduce config/config.h.in, and postprocess it to generate config/unconfig.h by commenting out all the #undef directives, just as configure does. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
62 lines
2.2 KiB
Bash
Executable File
62 lines
2.2 KiB
Bash
Executable File
#!/bin/sh -x
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#
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# Run this script to regenerate autoconf files
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#
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recheck=false
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if [ x"$1" = x--recheck ]; then
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recheck=true
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config=$(sh config.status --config 2>/dev/null)
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fi
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# This allows for overriding the default autoconf programs
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AUTOCONF="${AUTOCONF:-${AUTOTOOLS_PREFIX}autoconf}"
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AUTOMAKE="${AUTOMAKE:-${AUTOTOOLS_PREFIX}automake}"
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ACLOCAL="${ACLOCAL:-${AUTOTOOLS_PREFIX}aclocal}"
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AUTOHEADER="${AUTOHEADER:-${AUTOTOOLS_PREFIX}autoheader}"
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mkdir -p autoconf autoconf/helpers config
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autolib="`"$AUTOMAKE" --print-libdir`"
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if test ! x"$autolib" = x; then
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for prg in install-sh compile config.guess config.sub; do
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# Update autoconf helpers if and only if newer ones are available
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if test -f "$autolib"/"$prg" && \
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( test -f "$autolib"/"$prg" && \
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sed -n -r -e \
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's/^(scriptver(|sion)|timestamp)=['\''"]?([^'\''"]+).*$/\3/p' \
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"$autolib"/"$prg" autoconf/helpers/"$prg" | \
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sort --check=quiet; test $? -ne 0 )
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then
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cp -f "$autolib"/"$prg" autoconf/helpers
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fi
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done
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fi
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mv -f autoconf/aclocal.m4 autoconf/aclocal.m4.old
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mkdir -p autoconf/m4.old autoconf/m4
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mv -f autoconf/m4/*.m4 autoconf/m4.old/ 2>/dev/null || true
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ACLOCAL_PATH="${ACLOCAL_PATH}${ACLOCAL_PATH:+:}`pwd`/autoconf/m4.old"
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export ACLOCAL_PATH
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"$ACLOCAL" --install --output=autoconf/aclocal.m4 -I autoconf/m4
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if test ! -f autoconf/aclocal.m4; then
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# aclocal failed, revert to previous files
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mv -f autoconf/m4.old/*.m4 autoconf/m4/
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mv -f autoconf/aclocal.m4.old autoconf/aclocal.m4
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fi
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rm -rf autoconf/*m4.old
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"$AUTOHEADER" -B autoconf
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if [ config/config.h.in -nt config/unconfig.h ]; then
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# Create a file corresponding to a completely empty configure
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# instance, commenting out the #undef directives from the template
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# just like configure would do.
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perl -np < config/config.h.in > config/unconfig.h \
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-e 's:^(\#\s*undef\s.*)$:/* $1 */:;' \
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-e 's:config/config.h.in:config/unconfig.h:;' \
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-e 's:autoheader:autogen.sh:;'
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fi
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"$AUTOCONF" -B autoconf
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rm -rf autom4te.cache config.log config.status config/config.h Makefile
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if $recheck; then
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# This bizarre statement has to do with how config.status quotes its output
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echo exec sh configure $config | sh -
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fi
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