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|
#!/bin/sh
TOPDIR=$(dirname $0)
if [ -z "${INCDIR}" ]; then
INCDIR="${TOPDIR}/include"
fi
. "${TOPDIR}/mk.sh"
export LC_ALL=POSIX
export LANG=POSIX
HEADER=$1
HEADERNAME=$(echo $HEADER | sed -e "s#^${INCDIR}/*##")
GUARD=__$(echo $HEADERNAME | tr a-z/. A-Z__)__
mkdir -p $(dirname $HEADER)
exec > $HEADER
if [ $(basename $HEADER) != assert.h ]; then
printf '#ifndef %s\n#define %s\n\n' ${GUARD} ${GUARD}
fi
printf "/*\nUNG's Not GNU\n\n%s\n*/\n\n" "$(cat LICENSE)"
rm -rf $HEADER.*
for i in $(cat "${TOPDIR}/.deps/h/${HEADERNAME}.deps" | sort -u); do
# TODO: refs
type=$(classify_source $i)
source=$i
if [ $type = "REFERENCE" ] && ! grep -Fq 'REFERENCE(<' $source; then
source=src/$(grep REFERENCE $i | m4 -DREFERENCE='$1')
type=$(classify_source $source)
fi
version=v$(grep -F -e 'STDC(' -e 'POSIX(' -e 'XOPEN(' $i | sed -e 's/STDC/C/' | sort | tr , - | tr -d '() \n')
mkdir -p $HEADER.$type
echo $source >> $HEADER.$type/$version
if ! [ -f $(dirname $0)/.deps/ftm/$version ]; then
mkdir -p $(dirname $0)/.deps/ftm
version_guard $source > $(dirname $0)/.deps/ftm/$version
fi
printf '%s <%s> (%s)\n' "$i" "$HEADER" "$version" >&2
done
###
### TODO: prevent _XOPEN_SOURCE expanding to empty string
###
if grep -Fq -e '_XOPEN_SOURCE <' -e '< _XOPEN_SOURCE' $(cat $(HEADER.*/*); then
cat <<-EOF
#if defined _XOPEN_SOURCE && _XOPEN_SOURCE - 1 < 0
# undef _XOPEN_SOURCE
# define _XOPEN_SOURCE 400
#endif
EOF
fi
if grep -Fq 'POSIX(' $(cat $HEADER.*/*); then
cat <<-EOF
#if defined _XOPEN_SOURCE && !defined _POSIX_C_SOURCE
# if (_XOPEN_SOURCE >= 700)
# define _POSIX_C_SOURCE 200809L
# elif (_XOPEN_SOURCE >= 600)
# define _POSIX_C_SOURCE 200112L
# elif (_XOPEN_SOURCE >= 500)
# define _POSIX_C_SOURCE 199506L
# else
# define _POSIX_C_SOURCE 2
# endif
#endif
#if defined _POSIX_C_SOURCE && !defined _POSIX_SOURCE
# define _POSIX_SOURCE
#endif
EOF
fi
if grep -Fq -e 'POSIX(' -e 'XOPEN(' $(cat $HEADER.*/*); then
cat <<-EOF
#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 19901L
# if (defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 200112L)
# error POSIX.1-2001 and later require a C99 compiler
# elif(defined _XOPEN_SOURCE && _XOPEN_SOURCE >= 600)
# error XOPEN Issue 6 and later require a C99 compiler
# endif
#endif
EOF
fi
for type in REFERENCE MACRO TYPE TYPE_LONG RECORD FNTYPE EXTERN; do
if [ -d $HEADER.$type ]; then
for v in $HEADER.$type/*; do
version=$(cat $(dirname $0)/.deps/ftm/$(basename $v | sed -e 's/^.*\.//'))
if [ -n "$version" ]; then
printf '%s\n' "$version"
fi
for i in $(sort -u $v); do
printf '/* %s */\n' $i
get_declaration $i
done
if [ -n "$version" ]; then
printf '#endif\n'
fi
printf '\n'
done
rm -rf $HEADER.$type
fi
done
if [ -d $HEADER.TGFN ]; then
for v in $HEADER.TGFN/*; do
version=$(cat $(dirname $0)/.deps/ftm/$(basename $v | sed -e 's/^.*\.//'))
if [ -n "$version" ]; then
printf '%s\n' "$version"
fi
for i in $(sort -u $v); do
printf '/* %s */\n' $i
get_declaration $i TGFN
done
if [ -n "$version" ]; then
printf '#endif\n'
fi
printf '\n'
done
rm -rf $HEADER.TGFN
fi
if [ -d $HEADER.FUNCTION ]; then
if grep -q restrict $(cat $HEADER.FUNCTION/*); then
if grep -Fq -e 'STDC(1)' -e 'STDC(1,' -e 'STDC(199409' $(grep -l restrict $(cat $HEADER.FUNCTION/*)) || ! grep -Fq 'STDC(' $(grep -l restrict $(cat $HEADER.FUNCTION/*)); then
printf '#if (!defined __STDC_VERSION__) || (__STDC_VERSION__ < 199901L)\n'
printf '#define restrict\n'
printf '#endif\n\n'
fi
fi
### TODO: only if header works with C<11
if grep -q _Noreturn $(cat $HEADER.FUNCTION/*); then
printf '#if (!defined __STDC_VERSION__) || (__STDC_VERSION__ < 200112L)\n'
printf '#define _Noreturn\n'
printf '#endif\n\n'
fi
for v in $HEADER.FUNCTION/*; do
version=$(cat $(dirname $0)/.deps/ftm/$(basename $v | sed -e 's/^.*\.//'))
if [ -n "$version" ]; then
printf '%s\n' "$version"
fi
for i in $(sort -u $v); do
printf '/* %s */\n' $i
get_declaration $i FUNCTION | sed -e 's/\([a-zA-Z_][a-zA-Z_0-9]*\)\([,)]\)/__\1\2/g;s/(__\([a-zA-Z_][a-zA-Z_0-9]*\))/(\1)/g'
done
if [ -n "$version" ]; then
printf '#endif\n'
fi
printf '\n'
done
rm -rf $HEADER.FUNCTION
fi
rm -rf $HEADER.REFERENCE
if [ $(basename $HEADER) != assert.h ]; then
printf '\n#endif\n'
fi
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