dnl Some useful functions for LyXs configure.in -*- sh -*- dnl Author: Jean-Marc Lasgouttes (Jean-Marc.Lasgouttes@inria.fr) dnl Lars Gullik Bjønnes (larsbj@lyx.org) dnl Allan Rae (rae@lyx.org) dnl Usage LYX_CHECK_VERSION Displays version of LyX being built and dnl sets variables "lyx_devel_version" and "lyx_prerelease" AC_DEFUN([LYX_CHECK_VERSION],[ changequote(, ) dnl echo "configuring LyX version $VERSION" if echo "$VERSION" | grep 'cvs' >/dev/null ; then lyx_devel_version=yes echo "WARNING: This is a development version. Expect bugs." else lyx_devel_version=no fi if echo "$VERSION" | grep 'pre' > /dev/null ; then lyx_prerelease=yes echo "WARNING: This is a prerelease. Be careful and backup your documents." else lyx_prerelease=no fi changequote([, ]) dnl AC_SUBST(lyx_devel_version) if test $lyx_devel_version = yes ; then AC_DEFINE(DEVEL_VERSION, 1, Define if you are building a development version of LyX) fi]) dnl Define the option to set a LyX version on installed executables and directories dnl dnl AC_DEFUN([LYX_VERSION_SUFFIX],[ AC_MSG_CHECKING([for install target ... ]) AC_ARG_WITH(version-suffix, [ --with-version-suffix[=] install lyx files as lyx], [if test "x$withval" = "xyes"; then withval="-$VERSION" ac_configure_args=`echo $ac_configure_args | sed "s,--with-version-suffix,--with-version-suffix=$withval,"` fi lyxname="lyx$withval" program_suffix=$withval], [lyxname=lyx]) AC_MSG_RESULT([$lyxname]) ]) dnl Usage: LYX_ERROR(message) Displays the warning "message" and sets the dnl flag lyx_error to yes. AC_DEFUN([LYX_ERROR],[ lyx_error_txt="$lyx_error_txt ** $1 " lyx_error=yes]) dnl Usage: LYX_WARNING(message) Displays the warning "message" and sets the dnl flag lyx_warning to yes. AC_DEFUN([LYX_WARNING],[ lyx_warning_txt="$lyx_warning_txt == $1 " lyx_warning=yes]) dnl Usage: LYX_LIB_ERROR(file,library) Displays an error message indication dnl that 'file' cannot be found because 'lib' may be uncorrectly installed. AC_DEFUN([LYX_LIB_ERROR],[ LYX_ERROR([Cannot find $1. Please check that the $2 library is correctly installed on your system.])]) dnl Usage: LYX_CHECK_ERRORS Displays a warning message if a LYX_ERROR dnl has occured previously. AC_DEFUN([LYX_CHECK_ERRORS],[ if test x$lyx_error = xyes; then cat <conftest.C <&5 || CXX= rm -f conftest.C conftest.o conftest.obj || true ]) AC_DEFUN([LYX_PROG_CXX], [AC_MSG_CHECKING([for a good enough C++ compiler]) LYX_SEARCH_PROG(CXX, $CXX $CCC g++ gcc c++ CC cxx xlC cc++, [LYX_PROG_CXX_WORKS]) if test -z "$CXX" ; then AC_MSG_ERROR([Unable to find a good enough C++ compiler]) fi AC_MSG_RESULT($CXX) AC_PROG_CXX ### We might want to get or shut warnings. AC_ARG_ENABLE(warnings, [ --enable-warnings tell the compiler to display more warnings],, [ if test $lyx_devel_version = yes -o $lyx_prerelease = yes && test $ac_cv_prog_gxx = yes ; then enable_warnings=yes; else enable_warnings=no; fi;]) if test x$enable_warnings = xyes ; then lyx_flags="$lyx_flags warnings" AC_DEFINE(WITH_WARNINGS, 1, [Define this if you want to see the warning directives put here and there by the developpers to get attention]) fi ### We might want to disable debug AC_ARG_ENABLE(debug, [ --enable-debug enable debug information],, [ if test $lyx_devel_version = yes -o $lyx_prerelease = yes && test $ac_cv_prog_gxx = yes ; then enable_debug=yes; else enable_debug=no; fi;]) ### set up optimization AC_ARG_ENABLE(optimization, [ --enable-optimization[=value] enable compiler optimisation],, enable_optimization=yes;) case $enable_optimization in yes) lyx_opt=-O;; no) lyx_opt=;; *) lyx_opt=${enable_optimization};; esac # set the debug flags correctly. if test x$GXX = xyes; then dnl Useful for global version info gxx_version=`${CXX} -dumpversion` CXX_VERSION="($gxx_version)" if test "$ac_test_CXXFLAGS" = set; then CXXFLAGS="$ac_save_CXXFLAGS" else case $gxx_version in 2.95.1) CXXFLAGS="$lyx_opt -fpermissive -ftemplate-depth-30";; 2.95.*) CXXFLAGS="$lyx_opt -Wno-non-template-friend -ftemplate-depth-30";; 2.96*) CXXFLAGS="$lyx_opt -fno-exceptions -ftemplate-depth-30 -Wno-non-template-friend";; 3.0*) CXXFLAGS="$lyx_opt";; 3.1*) CXXFLAGS="$lyx_opt -finline-limit=500 -fno-exceptions";; 3.2*) CXXFLAGS="$lyx_opt -fno-exceptions";; *) CXXFLAGS="$lyx_opt";; esac if test x$enable_debug = xyes ; then CXXFLAGS="-g $CXXFLAGS" fi fi if test x$enable_warnings = xyes ; then case $gxx_version in 2.95.*) CXXFLAGS="$CXXFLAGS -W -Wall";; 2.96*) CXXFLAGS="$CXXFLAGS -W -Wall";; 3.1*) CXXFLAGS="$CXXFLAGS -W -Wall";; *) CXXFLAGS="$CXXFLAGS -W -Wall";; esac fi fi])dnl dnl NOT USED CURRENTLY************************************* dnl Usage: LYX_CXX_RTTI : checks whether the C++ compiler dnl supports RTTI AC_DEFUN([LYX_CXX_RTTI],[ ### Check whether the compiler supports runtime type information AC_CACHE_CHECK(whether the C++ compiler supports RTTI,lyx_cv_rtti, [AC_TRY_RUN([ class rtti { public: virtual int tag() { return 0; } }; class derived1 : public rtti { public: int tag() { return 1; } }; class derived2 : public rtti { public: int tag() { return 2; } }; int main() { derived1 * foo1 = new derived1(); derived2 * foo2 = new derived2(); rtti * bar = foo1; derived1 * bar1 = dynamic_cast(bar); if (bar1 == 0) exit(1); bar = foo2; bar1 = dynamic_cast(bar); if (bar1 != 0) exit(1); return 0; } ],lyx_cv_rtti=yes,lyx_cv_rtti=no,lyx_cv_rtti=no) ]) if test x$lyx_cv_rtti = xyes ; then AC_DEFINE(HAVE_RTTI, 1, [Define to 1 if your compiler supports runtime type information]) fi]) dnl Usage: LYX_CXX_EXPLICIT : checks whether the C++ compiler dnl understands the "explicit" directive. AC_DEFUN([LYX_CXX_EXPLICIT],[ ### Check whether the compiler understands the keyword `explicit' AC_CACHE_CHECK(whether the C++ compiler understands explicit,lyx_cv_explicit, [AC_TRY_COMPILE([ class Expl { public: explicit Expl() {} };],,lyx_cv_explicit=yes,lyx_cv_explicit=no) ]) if test $lyx_cv_explicit = no ; then AC_DEFINE(explicit,[ ], [Define to nothing if your compiler does not understand the 'explicit' directive]) fi]) dnl NOT USED CURRENTLY************************************* dnl Usage: LYX_CXX_STL_STACK : checks whether the C++ compiler dnl has a working stl stack template AC_DEFUN([LYX_CXX_STL_STACK],[ AC_CACHE_CHECK(for broken STL stack template,lyx_cv_broken_stack, [AC_TRY_COMPILE([ #include using std::stack; ],[ stack stakk; stakk.push(0); ],lyx_cv_broken_stack=no,lyx_cv_broken_stack=yes) ]) if test $lyx_cv_broken_stack = yes ; then AC_DEFINE(BROKEN_STL_STACK, 1, [Define if you have the STL from libg++ 2.7.x, where stack<> is not defined correctly]) fi]) dnl Usage: LYX_STD_COUNT : checks wherer the C++ library have a conforming dnl count template, if not the old HP version is assumed. AC_DEFUN([LYX_STD_COUNT],[ AC_CACHE_CHECK(for conforming std::count,lyx_cv_std_count, [AC_TRY_COMPILE([ #include using std::count; int countChar(char * b, char * e, char const c) { return count(b, e, c); } ],[ char a[] = "hello"; int i = countChar(a, a + 5, 'l'); ],lyx_cv_std_count=yes,lyx_cv_std_count=no) ]) if test $lyx_cv_std_count = yes ; then AC_DEFINE(HAVE_STD_COUNT, 1, [Define if you have a conforming std::count template, otherwise HP version of count template is assumed.]) fi]) dnl Usage: LYX_CXX_STL_MODERN_STREAMS : checks whether the C++ compiler dnl supports modern STL streams AC_DEFUN([LYX_CXX_STL_MODERN_STREAMS],[ AC_CACHE_CHECK(for modern STL streams,lyx_cv_modern_streams, [AC_TRY_COMPILE([ #include ],[ std::streambuf * test = std::cerr.rdbuf(); test->pubsync(); ],lyx_cv_modern_streams=yes,lyx_cv_modern_streams=no) ]) if test $lyx_cv_modern_streams = yes ; then AC_DEFINE(MODERN_STL_STREAMS, 1, [Define if you have modern standard-compliant STL streams]) fi]) dnl Usage: LYX_CXX_STL_STRING : checks whether the C++ compiler dnl has a std::string that is usable for LyX. LyX does not require this dnl std::string to be standard. AC_DEFUN([LYX_CXX_STL_STRING],[ AC_REQUIRE([AC_PROG_CXX]) AC_MSG_CHECKING(whether the included std::string should be used) AC_ARG_WITH(included-string, [ --with-included-string use LyX string class instead of STL string], [lyx_cv_with_included_string=$withval AC_MSG_RESULT([$with_included_string])], [AC_CACHE_CHECK([],lyx_cv_with_included_string, [AC_TRY_COMPILE([ #include using std::string; ],[ // LyX has reduced its requirements on the basic_string // implementation so that the basic_string supplied // with gcc is usable. In particular this means that // lyx does not use std::string::clear and not the // strncmp version of std::string::compare. This is mainly // done so that LyX can use precompiled C++ libraries that // already uses the systems basic_string, e.g. gtk-- string a("hello there"); a.erase(); a = "hey"; //char s[] = "y"; //int t = a.compare(a.length() - 1, 1, s); a.erase(); ],[ lyx_cv_with_included_string=no ],[ lyx_cv_with_included_string=yes ]) ]) ]) if test x$lyx_cv_with_included_string = xyes ; then AC_DEFINE(USE_INCLUDED_STRING, 1, [Define to use the lyxstring class bundled with LyX.]) lyx_flags="$lyx_flags included-string" fi AM_CONDITIONAL(USE_LYXSTRING, test x$lyx_cv_with_included_string = xyes) dnl AC_MSG_RESULT([$with_included_string]) ]) dnl Usage: LYX_CXX_GOOD_STD_STRING : checks whether the C++ compiler dnl has a std::string that is close to the standard. So close that dnl methods not found in "unstandard" std::strings are present here. AC_DEFUN([LYX_CXX_GOOD_STD_STRING],[ AC_REQUIRE([AC_PROG_CXX]) AC_CACHE_CHECK([whether the systems std::string is really good], [lyx_cv_std_string_good], [AC_TRY_COMPILE([ #include using std::string; ],[ // From a std::string that is supposed to be close to the // standard we require at least three things: // - clear() and erase() // - the strncmp of compare() // - push_back() string a("hello there"); a.erase(); a = "hey"; char s[] = "y"; int t = a.compare(a.length() - 1, 1, s); a.push_back('g'); a.clear(); ],[ lyx_cv_std_string_good=yes ],[ lyx_cv_std_string_good=no ]) ]) if test x$lyx_cv_std_string_good = xyes ; then AC_DEFINE(STD_STRING_IS_GOOD, 1, [Define if the systems std::string is really good.]) fi ]) dnl NOT USED CURRENTLY************************************* dnl LYX_CXX_PARTIAL AC_DEFUN([LYX_CXX_PARTIAL], [ AC_REQUIRE([AC_PROG_CXX]) AC_CACHE_CHECK([if C++ compiler supports partial specialization], [lyx_cv_cxx_partial_specialization], [AC_TRY_COMPILE( [ template class k { public: }; template class k { }; ],[ k b; k a; ],[ lyx_cv_cxx_partial_specialization=yes ],[ lyx_cv_cxx_partial_specialization=no ]) ]) if test x$lyx_cv_cxx_partial_specialization = xyes ; then AC_DEFINE(HAVE_PARTIAL_SPECIALIZATION, 1, [Defined if your compiler supports partial specialization.]) fi ]) dnl Usage: LYX_CXX_CHEADERS : checks whether the C++ compiler dnl provides wrappers for C headers and use our alternate version otherwise. AC_DEFUN([LYX_CXX_CHEADERS],[ AC_CACHE_CHECK(for C headers wrappers,lyx_cv_cxx_cheaders, [AC_TRY_CPP([ #include #include #include #include #include #include #include #include #include ],[lyx_cv_cxx_cheaders=yes],[lyx_cv_cxx_cheaders=no])]) if test $lyx_cv_cxx_cheaders = no ; then LYX_ADD_INC_DIR(lyx_cppflags,\$(top_srcdir)/src/cheaders) fi]) dnl Usage: LYX_CXX_GLOBAL_CSTD: checks whether C library functions dnl are already in the global namespace AC_DEFUN([LYX_CXX_GLOBAL_CSTD],[ AC_CACHE_CHECK(whether C library functions are already in the global namespace, lyx_cv_cxx_global_cstd, [AC_TRY_COMPILE([ #include using std::tolower; ],[ return 0; ],[lyx_cv_cxx_global_cstd=no],[lyx_cv_cxx_global_cstd=yes])]) if test x$lyx_cv_cxx_global_cstd = xyes; then AC_DEFINE(CXX_GLOBAL_CSTD,1, [Define if your C++ compiler puts C library functions in the global namespace]) fi ]) dnl Usage LYX_PATH_XPM: Checks for xpm library and header AC_DEFUN([LYX_PATH_XPM],[ ### Check for Xpm library AC_CHECK_LIB(Xpm, XpmCreateBufferFromImage, XPM_LIB="-lXpm", [LYX_LIB_ERROR(libXpm,Xpm)]) AC_SUBST(XPM_LIB) ### Check for Xpm headers lyx_cv_xpm_h_location="" AC_CHECK_HEADER(X11/xpm.h,[ ac_cv_header_xpm_h=yes lyx_cv_xpm_h_location=""],[ AC_CHECK_HEADER(xpm.h,[],[ LYX_LIB_ERROR(xpm.h,Xpm)])]) AC_DEFINE_UNQUOTED(XPM_H_LOCATION,$lyx_cv_xpm_h_location, [define this to the location of xpm.h to be used with #include, e.g. ]) ### Test for the header version if test $ac_cv_header_xpm_h = yes; then AC_CACHE_CHECK([xpm header version],lyx_cv_xpmversion, [ cat > conftest.$ac_ext <&5 | \ grep '^"%%%"' 2>/dev/null | \ sed -e 's/^"%%%"\(.*\)"%%%"/\1/' -e 's/ //g'` case "$lyx_cv_xpmr" in changequote(,) [0-9]) lyxxpmr_alpha=`echo $lyx_cv_xpmr |tr 123456789 abcdefghi` lyxxpmv_alpha=" (aka 3.$lyx_cv_xpmv$lyxxpmr_alpha)";; changequote([,]) *) ;; esac lyx_cv_xpmversion="$lyx_cv_xpmv.$lyx_cv_xpmr$lyxxpmv_alpha" rm -f conftest*]) XPM_VERSION=${lyx_cv_xpmversion} case "$lyx_cv_xpmr" in changequote(,) [789]|[0-9][0-9]*) ;; changequote([,]) *) LYX_WARNING([Version $lyx_cv_xpmversion of the Xpm library is a bit old. If you experience strange crashes with LyX, try to upgrade to at least version 4.7 (aka 3.4g). If you have installed a newer version of the library, check whether you have an old xpm.h header file in your include path.]);; esac fi]) dnl Usage: LYX_FUNC_PUTENV_ARGTYPE dnl Checks whether putenv() takes 'char const *' or 'char *' as dnl argument. This is needed because Solaris 7 (wrongly?) uses 'char *', dnl while everybody else uses the former... AC_DEFUN([LYX_FUNC_PUTENV_ARGTYPE], [AC_MSG_CHECKING([type of argument for putenv()]) AC_CACHE_VAL(lyx_cv_func_putenv_arg,dnl [AC_TRY_COMPILE(dnl [#include ], [char const * foo = "bar"; putenv(foo);],dnl [lyx_cv_func_putenv_arg='char const *'],[lyx_cv_func_putenv_arg='char *'])]) AC_MSG_RESULT($lyx_cv_func_putenv_arg) AC_DEFINE_UNQUOTED(PUTENV_TYPE_ARG,$lyx_cv_func_putenv_arg,dnl [Define to the type of the argument of putenv(). Needed on Solaris 7.])]) dnl Usage: LYX_WITH_DIR(dir-name,desc,dir-var-name,default-value, dnl [default-yes-value]) dnl Adds a --with-'dir-name' option (described by 'desc') and puts the dnl resulting directory name in 'dir-var-name'. AC_DEFUN([LYX_WITH_DIR],[ AC_ARG_WITH($1,[ --with-$1 specify $2]) AC_MSG_CHECKING([for $2]) if test -z "$with_$3"; then AC_CACHE_VAL(lyx_cv_$3, lyx_cv_$3=$4) else test "x$with_$3" = xyes && with_$3=$5 lyx_cv_$3="$with_$3" fi AC_MSG_RESULT($lyx_cv_$3)]) dnl Usage: LYX_LOOP_DIR(value,action) dnl Executes action for values of variable `dir' in `values'. `values' can dnl use ":" as a separator. AC_DEFUN([LYX_LOOP_DIR],[ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:" for dir in `eval "echo $1"`; do if test ! "$dir" = NONE; then test ! -d "$dir" && AC_MSG_ERROR([\"$dir\" is not a directory]) $2 fi done IFS=$ac_save_ifs ]) dnl Usage: LYX_ADD_LIB_DIR(var-name,dir) Adds a -L directive to variable dnl var-name. AC_DEFUN([LYX_ADD_LIB_DIR],[ $1="${$1} -L$2" if test "`(uname) 2>/dev/null`" = SunOS && uname -r | grep '^5' >/dev/null; then if test $ac_cv_prog_gxx = yes ; then $1="${$1} -Wl[,]-R$2" else $1="${$1} -R$2" fi fi]) dnl Usage: LYX_ADD_INC_DIR(var-name,dir) Adds a -I directive to variable dnl var-name. AC_DEFUN([LYX_ADD_INC_DIR],[$1="${$1} -I$2 "]) ### Check for a headers existence and location iff it exists ## This is supposed to be a generalised version of LYX_STL_STRING_FWD ## It almost works. I've tried a few variations but they give errors ## of one sort or other: bad substitution or file not found etc. The ## actual header _is_ found though and the cache variable is set however ## the reported setting (on screen) is equal to $ac_safe for some unknown ## reason. ## Additionally, autoheader can't figure out what to use as the name in ## the config.h.in file so we need to write our own entries there -- one for ## each header in the form PATH_HEADER_NAME_H ## AC_DEFUN([LYX_PATH_HEADER], [ AC_CHECK_HEADER($1,[ ac_tr_safe=PATH_`echo $ac_safe | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'` ### the only remaining problem is getting the second parameter to this ### AC_CACHE_CACHE to print correctly. Currently it just results in value ### of $ac_safe being printed. AC_CACHE_CHECK([path to $1],[lyx_cv_path2_$ac_safe], [ cat > conftest.$ac_ext < EOF lyx_path_header_path=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \ grep $1 2>/dev/null | \ sed -e 's/.*\(".*$1"\).*/\1/' -e "1q"` eval "lyx_cv_path2_${ac_safe}=\$lyx_path_header_path" rm -f conftest*]) AC_DEFINE_UNQUOTED($ac_tr_safe, $lyx_path_header_path, [dummy])]) ]) ### end of LYX_PATH_HEADER ### Check which frontend we want to use. The default is XForms ### AC_DEFUN([LYX_USE_FRONTEND], [AC_MSG_CHECKING([what frontend should be used as main GUI]) AC_ARG_WITH(frontend, [ --with-frontend=THIS Use THIS frontend as main GUI: Possible values: xforms, qt], [lyx_use_frontend="$withval"], [lyx_use_frontend="xforms"]) AC_MSG_RESULT($lyx_use_frontend) AC_SUBST(FRONTEND) AC_SUBST(FRONTEND_GUILIB) AC_SUBST(FRONTEND_LDFLAGS) AC_SUBST(FRONTEND_INCLUDES) AC_SUBST(FRONTEND_LIBS) ]) ## Check what kind of packaging should be used at install time. ## The default is autodetected. AC_DEFUN([LYX_USE_PACKAGING], [AC_MSG_CHECKING([what packaging should be used]) AC_ARG_WITH(packaging, [ --with-packaging=THIS Use THIS packaging for installation: Possible values: posix, windows, macosx], [lyx_use_packaging="$withval"], [ case $host in *-apple-darwin*) lyx_use_packaging=macosx ;; *-pc-mingw32*) lyx_use_packaging=windows;; *) lyx_use_packaging=posix;; esac]) AC_MSG_RESULT($lyx_use_packaging) case $lyx_use_packaging in macosx) AC_DEFINE(USE_MACOSX_PACKAGING, 1, [Define to 1 if LyX should use a MacOS X application bundle file layout]) default_prefix="/Applications/LyX.app" bindir='${prefix}/Contents/MacOS' libdir='${prefix}/Contents/Resources' datadir='${prefix}/Contents/Resources' mandir='${prefix}/Contents/Resources/man' ;; windows) AC_DEFINE(USE_WINDOWS_PACKAGING, 1, [Define to 1 if LyX should use a Windows-style file layout]) default_prefix="C:/Program Files/LyX" bindir='${prefix}/bin' libdir='${prefix}/Resources' datadir='${prefix}/Resources' mandir='${prefix}/Resources/man' ;; posix) AC_DEFINE(USE_POSIX_PACKAGING, 1, [Define to 1 if LyX should use a POSIX-style file layout]) default_prefix=$ac_default_prefix ;; *) LYX_ERROR([Unknown packaging type $lyx_use_packaging]) ;; esac ]) ## ------------------------------------------------------------------------ ## Find a file (or one of more files in a list of dirs) ## ------------------------------------------------------------------------ ## AC_DEFUN([AC_FIND_FILE], [ $3=NO for i in $2; do for j in $1; do if test -r "$i/$j"; then $3=$i break 2 fi done done ]) dnl just a wrapper to clean up configure.in AC_DEFUN([LYX_PROG_LIBTOOL], [ AC_REQUIRE([AC_ENABLE_SHARED]) AC_REQUIRE([AC_ENABLE_STATIC]) dnl libtool is only for C, so I must force him dnl to find the correct flags for C++ ac_save_cc=$CC ac_save_cflags="$CFLAGS" CC=$CXX CFLAGS="$CXXFLAGS" AM_PROG_LIBTOOL dnl for libraries CC=$ac_save_cc CFLAGS="$ac_save_cflags" ]) ## ------------------------------------------------------------------------ ## Check whether mkdir() is mkdir or _mkdir, and whether it takes ## one or two arguments. ## ## http://ac-archive.sourceforge.net/C_Support/ac_func_mkdir.html ## ------------------------------------------------------------------------ ## AC_DEFUN([AC_FUNC_MKDIR], [AC_CHECK_FUNCS([mkdir _mkdir]) AC_CACHE_CHECK([whether mkdir takes one argument], [ac_cv_mkdir_takes_one_arg], [AC_TRY_COMPILE([ #include #if HAVE_UNISTD_H # include #endif ], [mkdir (".");], [ac_cv_mkdir_takes_one_arg=yes], [ac_cv_mkdir_takes_one_arg=no])]) if test x"$ac_cv_mkdir_takes_one_arg" = xyes; then AC_DEFINE([MKDIR_TAKES_ONE_ARG], 1, [Define if mkdir takes only one argument.]) fi ])