*** /dev/null Thu Apr 25 11:22:11 2024
--- - Thu Apr 25 11:26:43 2024
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*** 0 ****
--- 1,284 ----
+
+ dnl ##
+ dnl ## Support for Platform IDs
+ dnl ##
+ dnl ## configure.in:
+ dnl ## AC_PLATFORM(<variable>)
+ dnl ##
+
+ AC_DEFUN(AC_PLATFORM,[
+ if test ".$host" != .NONE && test ".$host" != .; then
+ $1="$host"
+ else
+ $1=`${CONFIG_SHELL-/bin/sh} $srcdir/config.guess`
+ fi
+ $1=`${CONFIG_SHELL-/bin/sh} $srcdir/config.sub $$1` || exit 1
+ AC_SUBST($1)
+ if test ".$enable_subdir" != .yes; then
+ echo "Platform: ${TB}${$1}${TN}"
+ fi
+ ])dnl
+
+ dnl ##
+ dnl ## Support for Configuration Headers
+ dnl ##
+ dnl ## configure.in:
+ dnl ## AC_HEADLINE(<short-name>, <long-name>,
+ dnl ## <vers-var>, <vers-file>,
+ dnl ## <copyright>)
+ dnl ##
+
+ AC_DEFUN(AC_HEADLINE,[dnl
+ AC_DIVERT_PUSH(NOTICE)dnl
+ # configuration header
+ if test ".`echo dummy [$]@ | grep help`" = .; then
+ # bootstrapping shtool
+ ac_prog=[$]0
+ changequote(, )dnl
+ ac_srcdir=`echo $ac_prog | sed -e 's%/[^/][^/]*$%%' -e 's%\([^/]\)/*$%\1%'`
+ changequote([, ])dnl
+ test ".$ac_srcdir" = ".$ac_prog" && ac_srcdir=.
+ ac_shtool="$ac_srcdir/shtool"
+
+ # find out terminal sequences
+ TB=`$ac_shtool echo -n -e %B 2>/dev/null`
+ TN=`$ac_shtool echo -n -e %b 2>/dev/null`
+
+ # find out package version
+ $3_STR="`$ac_shtool version -l c -d long $ac_srcdir/$4`"
+ AC_SUBST($3_STR)
+
+ # friendly header ;)
+ echo "Configuring ${TB}$1${TN} ($2), Version ${TB}${$3_STR}${TN}"
+ echo "$5"
+
+ # additionally find out hex version
+ $3_HEX="`$ac_shtool version -l c -d hex $ac_srcdir/$4`"
+ AC_SUBST($3_HEX)
+ fi
+ AC_DIVERT_POP()
+ ])dnl
+
+ dnl ##
+ dnl ## Check whether compiler option works
+ dnl ##
+ dnl ## configure.in:
+ dnl ## AC_COMPILER_OPTION(<name>, <display>, <option>,
+ dnl ## <action-success>, <action-failure>)
+ dnl ##
+
+ AC_DEFUN(AC_COMPILER_OPTION,[dnl
+ AC_MSG_CHECKING(whether compiler option(s) $2 work)
+ AC_CACHE_VAL(ac_cv_compiler_option_$1,[
+ SAVE_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $3"
+ AC_TRY_COMPILE([],[], ac_cv_compiler_option_$1=yes, ac_cv_compiler_option_$1=no)
+ CFLAGS="$SAVE_CFLAGS"
+ ])dnl
+ if test ".$ac_cv_compiler_option_$1" = .yes; then
+ ifelse([$4], , :, [$4])
+ else
+ ifelse([$5], , :, [$5])
+ fi
+ AC_MSG_RESULT([$ac_cv_compiler_option_$1])
+ ])dnl
+
+ dnl ##
+ dnl ## Debugging Support
+ dnl ##
+ dnl ## configure.in:
+ dnl ## AC_CHECK_DEBUGGING
+ dnl ##
+
+ AC_DEFUN(AC_CHECK_DEBUGGING,[dnl
+ AC_ARG_ENABLE(debug,dnl
+ [ --enable-debug build for debugging (default=no)],
+ [dnl
+ if test ".$ac_cv_prog_gcc" = ".yes"; then
+ case "$CFLAGS" in
+ *-O* ) ;;
+ * ) CFLAGS="$CFLAGS -O2" ;;
+ esac
+ case "$CFLAGS" in
+ *-g* ) ;;
+ * ) CFLAGS="$CFLAGS -g" ;;
+ esac
+ case "$CFLAGS" in
+ *-pipe* ) ;;
+ * ) AC_COMPILER_OPTION(pipe, -pipe, -pipe, CFLAGS="$CFLAGS -pipe") ;;
+ esac
+ AC_COMPILER_OPTION(ggdb3, -ggdb3, -ggdb3, CFLAGS="$CFLAGS -ggdb3")
+ CFLAGS="$CFLAGS -pedantic"
+ CFLAGS="$CFLAGS -Wall"
+ WMORE="-Wshadow -Wpointer-arith -Wcast-align -Winline"
+ WMORE="$WMORE -Wmissing-prototypes -Wmissing-declarations -Wnested-externs"
+ AC_COMPILER_OPTION(wmore, -W<xxx>, $WMORE, CFLAGS="$CFLAGS $WMORE")
+ AC_COMPILER_OPTION(wnolonglong, -Wno-long-long, -Wno-long-long, CFLAGS="$CFLAGS -Wno-long-long")
+ else
+ case "$CFLAGS" in
+ *-g* ) ;;
+ * ) CFLAGS="$CFLAGS -g" ;;
+ esac
+ fi
+ msg="enabled"
+ dnl AC_DEFINE(DEBUG)
+ ],[
+ if test ".$ac_cv_prog_gcc" = ".yes"; then
+ case "$CFLAGS" in
+ *-pipe* ) ;;
+ * ) AC_COMPILER_OPTION(pipe, -pipe, -pipe, CFLAGS="$CFLAGS -pipe") ;;
+ esac
+ fi
+ case "$CFLAGS" in
+ *-g* ) CFLAGS=`echo "$CFLAGS" |\
+ sed -e 's/ -g / /g' -e 's/ -g$//' -e 's/^-g //g' -e 's/^-g$//'` ;;
+ esac
+ case "$CXXFLAGS" in
+ *-g* ) CXXFLAGS=`echo "$CXXFLAGS" |\
+ sed -e 's/ -g / /g' -e 's/ -g$//' -e 's/^-g //g' -e 's/^-g$//'` ;;
+ esac
+ msg=disabled
+ ])dnl
+ AC_MSG_CHECKING(for compilation debug mode)
+ AC_MSG_RESULT([$msg])
+ if test ".$msg" = .enabled; then
+ enable_shared=no
+ fi
+ ])
+
+ define(AC_IFALLYES,[dnl
+ ac_rc=yes
+ for ac_spec in $1; do
+ ac_type=`echo "$ac_spec" | sed -e 's/:.*$//'`
+ ac_item=`echo "$ac_spec" | sed -e 's/^.*://'`
+ case $ac_type in
+ header [)]
+ ac_item=`echo "$ac_item" | sed 'y%./+-%__p_%'`
+ ac_var="ac_cv_header_$ac_item"
+ ;;
+ file [)]
+ ac_item=`echo "$ac_item" | sed 'y%./+-%__p_%'`
+ ac_var="ac_cv_file_$ac_item"
+ ;;
+ func [)] ac_var="ac_cv_func_$ac_item" ;;
+ lib [)] ac_var="ac_cv_lib_$ac_item" ;;
+ define [)] ac_var="ac_cv_define_$ac_item" ;;
+ typedef [)] ac_var="ac_cv_typedef_$ac_item" ;;
+ custom [)] ac_var="$ac_item" ;;
+ esac
+ eval "ac_val=\$$ac_var"
+ if test ".$ac_val" != .yes; then
+ ac_rc=no
+ break
+ fi
+ done
+ if test ".$ac_rc" = .yes; then
+ :
+ $2
+ else
+ :
+ $3
+ fi
+ ])
+
+
+ dnl ##
+ dnl ## Check for an external/extension library.
+ dnl ## - is aware of <libname>-config style scripts
+ dnl ## - searches under standard paths include, lib, etc.
+ dnl ## - searches under subareas like .libs, etc.
+ dnl ##
+ dnl ## configure.in:
+ dnl ## AC_CHECK_EXTLIB(<realname>, <libname>, <func>, <header>,
+ dnl ## [<success-action> [, <fail-action>]])
+ dnl ## Makefile.in:
+ dnl ## CFLAGS = @CFLAGS@
+ dnl ## LDFLAGS = @LDFLAGS@
+ dnl ## LIBS = @LIBS@
+ dnl ## shell:
+ dnl ## $ ./configure --with-<libname>[=DIR]
+ dnl ##
+
+ AC_DEFUN(AC_CHECK_EXTLIB,[dnl
+ AC_ARG_WITH($2,dnl
+ [ --with-]substr([$2[[=DIR]] ], 0, 19)[build against $1 library (default=no)],
+ if test ".$with_$2" = .yes; then
+ # via config script
+ $2_version=`($2-config --version) 2>/dev/null`
+ if test ".$$2_version" != .; then
+ CPPFLAGS="$CPPFLAGS `$2-config --cflags`"
+ CFLAGS="$CFLAGS `$2-config --cflags`"
+ LDFLAGS="$LDFLAGS `$2-config --ldflags`"
+ fi
+ else
+ if test -d "$with_$2"; then
+ found=0
+ # via config script
+ for dir in $with_$2/bin $with_$2; do
+ if test -f "$dir/$2-config"; then
+ $2_version=`($dir/$2-config --version) 2>/dev/null`
+ if test ".$$2_version" != .; then
+ CPPFLAGS="$CPPFLAGS `$dir/$2-config --cflags`"
+ CFLAGS="$CFLAGS `$dir/$2-config --cflags`"
+ LDFLAGS="$LDFLAGS `$dir/$2-config --ldflags`"
+ found=1
+ break
+ fi
+ fi
+ done
+ # via standard paths
+ if test ".$found" = .0; then
+ for dir in $with_$2/include/$2 $with_$2/include $with_$2; do
+ if test -f "$dir/$4"; then
+ CPPFLAGS="$CPPFLAGS -I$dir"
+ CFLAGS="$CFLAGS -I$dir"
+ found=1
+ break
+ fi
+ done
+ for dir in $with_$2/lib/$2 $with_$2/lib $with_$2; do
+ if test -f "$dir/lib$2.a" -o -f "$dir/lib$2.so"; then
+ LDFLAGS="$LDFLAGS -L$dir"
+ found=1
+ break
+ fi
+ done
+ fi
+ # in any subarea
+ if test ".$found" = .0; then
+ changequote(, )dnl
+ for file in x `find $with_$2 -name "$4" -type f -print`; do
+ test .$file = .x && continue
+ dir=`echo $file | sed -e 's;[[^/]]*$;;' -e 's;\(.\)/$;\1;'`
+ CPPFLAGS="$CPPFLAGS -I$dir"
+ CFLAGS="$CFLAGS -I$dir"
+ done
+ for file in x `find $with_$2 -name "lib$2.[[aso]]" -type f -print`; do
+ test .$file = .x && continue
+ dir=`echo $file | sed -e 's;[[^/]]*$;;' -e 's;\(.\)/$;\1;'`
+ LDFLAGS="$LDFLAGS -L$dir"
+ done
+ changequote([, ])dnl
+ fi
+ fi
+ fi
+ AC_HAVE_HEADERS($4)
+ AC_CHECK_LIB($2, $3)
+ AC_IFALLYES(header:$4 lib:$2_$3, with_$2=yes, with_$2=no)
+ if test ".$with_$2" = .no; then
+ AC_ERROR([Unable to find $1 library])
+ fi
+ ,
+ if test ".$with_$2" = .; then
+ with_$2=no
+ fi
+ )dnl
+ AC_MSG_CHECKING(whether to build against $1 library)
+ if test ".$with_$2" = .yes; then
+ ifelse([$5], , :, [$5])
+ else
+ ifelse([$6], , :, [$6])
+ fi
+ AC_MSG_RESULT([$with_$2])
+ ])dnl
+
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