File indexing completed on 2024-04-28 11:21:06

 #! /bin/sh
 
 # local options:  ac_help is the help message that describes them
 # and LOCAL_AC_OPTIONS is the script that interprets them.  LOCAL_AC_OPTIONS
 # is a script that's processed with eval, so you need to be very careful to
 # make certain that what you quote is what you want to quote.
 
 # load in the configuration file
 #
 ac_help='--enable-amalloc       Enable memory allocation debugging
 --with-tabstops=N       Set tabstops to N characters (default is 4)
 --shared                Build shared libraries (default is static)
 --pkg-config            Install pkg-config(1) glue files
 --cxx-binding           Install header files with c++ wrappers
 --github-checkbox[=input] Enable github-style checkboxes in lists
                         (if =input, use <input checkbox>, otherwise
                         use html ballot entities)'
 
 LOCAL_AC_OPTIONS='
 set=`locals $*`;
 if [ "$set" ]; then
     eval $set
     shift 1
 else
     ac_error=T;
 fi'
 
 locals() {
     K=`echo $1 | $AC_UPPERCASE`
     case "$K" in
     --SHARED)
                 echo TRY_SHARED=T
                 ;;
     --ENABLE-*) enable=`echo $K | sed -e 's/--ENABLE-//' | tr '-' '_'`
                 echo WITH_${enable}=T ;;
     --DEBIAN-GLITCH)
                 echo DEBIAN_GLITCH=T
                 ;;
     --H1-TITLE)
                 echo H1TITLE=T
                 ;;
     --PKG-CONFIG)
                 echo PKGCONFIG=T
                 ;;
     --CXX-BINDING)
                 echo CXX_BINDING=T
                 ;;
     --GITHUB-CHECKBOX)
                 echo GITHUB_CHECKBOX=T
                 ;;
     --GITHUB-CHECKBOX=INPUT)
                 echo GITHUB_CHECKBOX=T
                 echo GITHUB_CHECKBOX_AS_INPUT=T
                 ;;
     esac
 }
 
 VERSION=`cat VERSION`
 TARGET=markdown
 . ./configure.inc
 
 # if there's a makefile here, it's likely that it's a discount
 # makefile and there's bits of an old configuration here.  So
 # blow everything away before we start the configuration.
 
 test -f Makefile && make spotless 2>/dev/null >/dev/null
 
 AC_INIT $TARGET
 AC_SUB 'PACKAGE_NAME' lib$TARGET
 AC_SUB 'PACKAGE_VERSION' $VERSION
 
 for banned_with in dl fenced-code id-anchor github-tags urlencoded-anchor; do
     banned_with_variable_ref=\$WITH_`echo "$banned_with" | $AC_UPPERCASE | tr - _`
     if [ "`eval echo "$banned_with_variable_ref"`" ]; then
         LOG "Setting theme default --with-$banned_with."
     fi
 done
 
 # theme wants the old behavior of --with-(foo)
 #
 case "`echo "$WITH_DL" | $AC_UPPERCASE`" in
     EXTRA)         THEME_CF="MKD_DLEXTRA|MKD_NODLDISCOUNT";;
     BOTH)          THEME_CF="MKD_DLEXTRA";;
 esac
 test "$WITH_FENCED_CODE" && THEME_CF="${THEME_CF:+$THEME_CF|}MKD_FENCEDCODE"
 
 AC_DEFINE THEME_CF "$THEME_CF"
 
 
 test "$DEBIAN_GLITCH" && AC_DEFINE 'DEBIAN_GLITCH' 1
 
 AC_PROG_CC
 AC_QUIET AC_PROG git && AC_DEFINE 'HAS_GIT' '1'
 AC_CHECK_ATTRIBUTE destructor
 
 test "$TRY_SHARED" && AC_COMPILER_PIC && AC_CC_SHLIBS
 
 if [ "IS_BROKEN_CC" ]; then
     case "$AC_CC $AC_CFLAGS" in
     *-pedantic*) ;;
     *)  # hack around deficiencies in gcc and clang
         #
         AC_DEFINE 'while(x)' 'while( (x) != 0 )'
         AC_DEFINE 'if(x)' 'if( (x) != 0 )'
 
         if [ "$IS_CLANG" ]; then
             AC_CC="$AC_CC -Wno-implicit-int"
         elif [ "$IS_GCC" ]; then
             AC_CC="$AC_CC -Wno-return-type -Wno-implicit-int"
         fi ;;
     esac
 fi
 
 AC_PROG ar || AC_FAIL "$TARGET requires ar"
 AC_PROG ranlib
 
 # should we create a .pc for pkg-config & GNU automake
 #
 if [ "$PKGCONFIG" ]; then
     AC_SUB MK_PKGCONFIG ''
 elif AC_PROG pkg-config || AC_PROG automake ; then
     PKGCONFIG=true
     AC_SUB MK_PKGCONFIG ''
 else
     AC_SUB MK_PKGCONFIG '#'
 fi
 
 AC_C_VOLATILE
 AC_C_CONST
 AC_C_INLINE
 AC_SCALAR_TYPES sub hdr
 AC_CHECK_BASENAME
 AC_CHECK_ALLOCA
 
 AC_CHECK_HEADERS sys/types.h pwd.h && AC_CHECK_FUNCS getpwuid
 if AC_CHECK_HEADERS sys/stat.h && AC_CHECK_FUNCS stat; then
 
 # need to check some of the S_ISxxx stat macros, because they may not
 # exist (for notspecial.c)
 
 cat > ngc$$.c << EOF
 #include <sys/stat.h>
 
 main(argc, argv)
 char **argv;
 {
    struct stat info;
 
     if ( stat(argv[0], &info) != 0 )
         return 1;
 
     return MACRO(info.st_mode);
 }
 EOF
     LOGN "special file macros in sys/stat.h:"
     _none="none"
     for x in ISSOCK ISCHR ISFIFO; do
         if $AC_CC -DMACRO=S_$x -o ngc$$.o  ngc$$.c; then
             LOGN " S_${x}"
             AC_DEFINE "HAS_${x}" '1'
             unset _none
         fi
     done
     LOG "${_none}."
     __remove ngc$$.o ngc$$.c
 fi
 
 if AC_CHECK_FUNCS srandom; then
     AC_DEFINE 'INITRNG(x)' 'srandom((unsigned int)x)'
 elif AC_CHECK_FUNCS srand; then
     AC_DEFINE 'INITRNG(x)' 'srand((unsigned int)x)'
 else
     AC_DEFINE 'INITRNG(x)' '(void)1'
 fi
 
 AC_CHECK_FUNCS 'memset((char*)0,0,0)' 'string.h' || \
             AC_CHECK_FUNCS 'memset((char*)0,0,0)' || \
                       AC_FAIL "$TARGET requires memset"
 
 if AC_CHECK_FUNCS random; then
     AC_DEFINE 'COINTOSS()' '(random()&1)'
 elif AC_CHECK_FUNCS rand; then
     AC_DEFINE 'COINTOSS()' '(rand()&1)'
 else
     AC_DEFINE 'COINTOSS()' '1'
 fi
 
 if AC_CHECK_FUNCS strcasecmp; then
     :
 elif AC_CHECK_FUNCS stricmp; then
     AC_DEFINE strcasecmp stricmp
 else
     AC_FAIL "$TARGET requires either strcasecmp() or stricmp()"
 fi
 
 if AC_CHECK_FUNCS strncasecmp; then
     :
 elif AC_CHECK_FUNCS strnicmp; then
     AC_DEFINE strncasecmp strnicmp
 else
     AC_FAIL "$TARGET requires either strncasecmp() or strnicmp()"
 fi
 
 if AC_CHECK_FUNCS fchdir || AC_CHECK_FUNCS getcwd ; then
     AC_SUB 'THEME' ''
 else
     AC_SUB 'THEME' '#'
 fi
 
 if [ -z "$WITH_TABSTOPS" ]; then
     TABSTOP=4
 elif [ "$WITH_TABSTOPS" -eq 1 ]; then
     TABSTOP=8
 else
     TABSTOP=$WITH_TABSTOPS
 fi
 AC_DEFINE 'TABSTOP' $TABSTOP
 AC_SUB    'TABSTOP' $TABSTOP
 
 
 if [ "$WITH_AMALLOC" ]; then
     AC_DEFINE   'USE_AMALLOC'   1
     AC_SUB      'AMALLOC'       'amalloc.o'
 else
     AC_SUB      'AMALLOC'       ''
 fi
 
 if [ "$H1TITLE" ]; then
     AC_SUB 'H1TITLE' h1title.o
     AC_DEFINE USE_H1TITLE 1
 else
     AC_SUB 'H1TITLE' ''
 fi
 
 if [ "$GITHUB_CHECKBOX" ]; then
     AC_DEFINE 'GITHUB_CHECKBOX' '1'
     test "$GITHUB_CHECKBOX_AS_INPUT" && AC_DEFINE 'CHECKBOX_AS_INPUT' '1'
 fi
 
 
 [ "$OS_FREEBSD" -o "$OS_DRAGONFLY" ] || AC_CHECK_HEADERS malloc.h
 
 [ "$WITH_PANDOC_HEADER" ] && AC_DEFINE 'PANDOC_HEADER' '1'
 
 GENERATE="Makefile version.c mkdio.h"
 
 if [ "$PKGCONFIG" ]; then
     GENERATE="$GENERATE libmarkdown.pc"
 fi
 
 AC_OUTPUT $GENERATE
 
 if [ "$CXX_BINDING" ]; then
     LOG "applying c++ glue to mkdio.h"
     mv mkdio.h mkdio.h$$
     (   echo '#ifdef __cplusplus'
         echo 'extern "C" {'
         echo '#endif'
         cat mkdio.h$$
         echo '#ifdef __cplusplus'
         echo '}'
         echo '#endif' ) > mkdio.h
     rm mkdio.h$$
 fi