diff options
Diffstat (limited to 'fastjar/aclocal.m4')
| -rw-r--r-- | fastjar/aclocal.m4 | 245 |
1 files changed, 134 insertions, 111 deletions
diff --git a/fastjar/aclocal.m4 b/fastjar/aclocal.m4 index ed682bb..5a9b493 100644 --- a/fastjar/aclocal.m4 +++ b/fastjar/aclocal.m4 @@ -10,6 +10,140 @@ dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A dnl PARTICULAR PURPOSE. + +dnl Host type sizes probe. +dnl By Kaveh R. Ghazi. One typo fixed since. +dnl +AC_DEFUN([gcc_AC_COMPILE_CHECK_SIZEOF], +[changequote(<<, >>)dnl +dnl The name to #define. +define(<<AC_TYPE_NAME>>, translit(sizeof_$1, [a-z *], [A-Z_P]))dnl +dnl The cache variable name. +define(<<AC_CV_NAME>>, translit(ac_cv_sizeof_$1, [ *], [_p]))dnl +changequote([, ])dnl +AC_MSG_CHECKING(size of $1) +AC_CACHE_VAL(AC_CV_NAME, +[for ac_size in 4 8 1 2 16 $3 ; do # List sizes in rough order of prevalence. + AC_TRY_COMPILE([#include "confdefs.h" +#include <sys/types.h> +$2 +], [switch (0) case 0: case (sizeof ($1) == $ac_size):;], AC_CV_NAME=$ac_size) + if test x$AC_CV_NAME != x ; then break; fi +done +]) +if test x$AC_CV_NAME = x ; then + AC_MSG_ERROR([cannot determine a size for $1]) +fi +AC_MSG_RESULT($AC_CV_NAME) +AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME, [The number of bytes in type $1]) +undefine([AC_TYPE_NAME])dnl +undefine([AC_CV_NAME])dnl +]) + +dnl Utility macro used by next two tests. +dnl AC_EXAMINE_OBJECT(C source code, +dnl commands examining object file, +dnl [commands to run if compile failed]): +dnl +dnl Compile the source code to an object file; then convert it into a +dnl printable representation. All unprintable characters and +dnl asterisks (*) are replaced by dots (.). All white space is +dnl deleted. Newlines (ASCII 0x10) in the input are preserved in the +dnl output, but runs of newlines are compressed to a single newline. +dnl Finally, line breaks are forcibly inserted so that no line is +dnl longer than 80 columns and the file ends with a newline. The +dnl result of all this processing is in the file conftest.dmp, which +dnl may be examined by the commands in the second argument. +dnl +AC_DEFUN([gcc_AC_EXAMINE_OBJECT], +[AC_LANG_SAVE +AC_LANG_C +dnl Next bit cribbed from AC_TRY_COMPILE. +cat > conftest.$ac_ext <<EOF +[#line __oline__ "configure" +#include "confdefs.h" +$1 +]EOF +if AC_TRY_EVAL(ac_compile); then + od -c conftest.o | + sed ['s/^[0-7]*[ ]*/ / + s/\*/./g + s/ \\n/*/g + s/ [0-9][0-9][0-9]/./g + s/ \\[^ ]/./g'] | + tr -d ' + ' | tr -s '*' ' +' | fold | sed '$a\ +' > conftest.dmp + $2 +ifelse($3, , , else + $3 +)dnl +fi +rm -rf conftest* +AC_LANG_RESTORE]) + +dnl Host endianness probe. +dnl Differs from AC_C_BIGENDIAN in that it does not require +dnl running a program on the host. +dnl +AC_DEFUN([fastjar_AC_COMPILE_C_BIGENDIAN], +[AC_CACHE_CHECK(byte ordering, ac_cv_c_compile_endian, +[ac_cv_c_compile_endian=unknown +gcc_AC_EXAMINE_OBJECT([ +#ifdef HAVE_LIMITS_H +# include <limits.h> +#endif +/* This structure must have no internal padding. */ + struct { + char prefix[sizeof "\nendian:" - 1]; + short word; + char postfix[2]; + } tester = { + "\nendian:", +#if SIZEOF_SHORT == 4 + ('A' << (CHAR_BIT * 3)) | ('B' << (CHAR_BIT * 2)) | +#endif + ('A' << CHAR_BIT) | 'B', + 'X', '\n' +};], + [if grep 'endian:AB' conftest.dmp >/dev/null 2>&1; then + ac_cv_c_compile_endian=big-endian + elif grep 'endian:BA' conftest.dmp >/dev/null 2>&1; then + ac_cv_c_compile_endian=little-endian + fi]) +]) +if test $ac_cv_c_compile_endian = unknown; then + AC_MSG_ERROR([*** unable to determine endianness]) +elif test $ac_cv_c_compile_endian = big-endian; then + AC_DEFINE(WORDS_BIG_ENDIAN, 1, + [Define if the host machine stores words of multi-word integers in + big-endian order.]) +fi +]) + +dnl Define MKDIR_TAKES_ONE_ARG if mkdir accepts only one argument instead +dnl of the usual 2. +AC_DEFUN(gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG, +[AC_CACHE_CHECK([if mkdir takes one argument], gcc_cv_mkdir_takes_one_arg, +[AC_TRY_COMPILE([ +#include <sys/types.h> +#ifdef HAVE_SYS_STAT_H +# include <sys/stat.h> +#endif +#ifdef HAVE_UNISTD_H +# include <unistd.h> +#endif +#ifdef HAVE_DIRECT_H +# include <direct.h> +#endif], [mkdir ("foo", 0);], + gcc_cv_mkdir_takes_one_arg=no, gcc_cv_mkdir_takes_one_arg=yes)]) +if test $gcc_cv_mkdir_takes_one_arg = yes ; then + AC_DEFINE(MKDIR_TAKES_ONE_ARG, 1, [Define if host mkdir takes a +single argument.]) +fi +]) + # Do all the work for Automake. This macro actually does too much -- # some checks are only needed if your package does certain things. # But this isn't really a big deal. @@ -158,114 +292,3 @@ else $1_FALSE= fi]) -dnl Host type sizes probe. -dnl By Kaveh R. Ghazi. One typo fixed since. -dnl -AC_DEFUN([gcc_AC_COMPILE_CHECK_SIZEOF], -[changequote(<<, >>)dnl -dnl The name to #define. -define(<<AC_TYPE_NAME>>, translit(sizeof_$1, [a-z *], [A-Z_P]))dnl -dnl The cache variable name. -define(<<AC_CV_NAME>>, translit(ac_cv_sizeof_$1, [ *], [_p]))dnl -changequote([, ])dnl -AC_MSG_CHECKING(size of $1) -AC_CACHE_VAL(AC_CV_NAME, -[for ac_size in 4 8 1 2 16 $3 ; do # List sizes in rough order of prevalence. - AC_TRY_COMPILE([#include "confdefs.h" -#include <sys/types.h> -$2 -], [switch (0) case 0: case (sizeof ($1) == $ac_size):;], AC_CV_NAME=$ac_size) - if test x$AC_CV_NAME != x ; then break; fi -done -]) -if test x$AC_CV_NAME = x ; then - AC_MSG_ERROR([cannot determine a size for $1]) -fi -AC_MSG_RESULT($AC_CV_NAME) -AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME, [The number of bytes in type $1]) -undefine([AC_TYPE_NAME])dnl -undefine([AC_CV_NAME])dnl -]) - -dnl Utility macro used by next two tests. -dnl AC_EXAMINE_OBJECT(C source code, -dnl commands examining object file, -dnl [commands to run if compile failed]): -dnl -dnl Compile the source code to an object file; then convert it into a -dnl printable representation. All unprintable characters and -dnl asterisks (*) are replaced by dots (.). All white space is -dnl deleted. Newlines (ASCII 0x10) in the input are preserved in the -dnl output, but runs of newlines are compressed to a single newline. -dnl Finally, line breaks are forcibly inserted so that no line is -dnl longer than 80 columns and the file ends with a newline. The -dnl result of all this processing is in the file conftest.dmp, which -dnl may be examined by the commands in the second argument. -dnl -AC_DEFUN([gcc_AC_EXAMINE_OBJECT], -[AC_LANG_SAVE -AC_LANG_C -dnl Next bit cribbed from AC_TRY_COMPILE. -cat > conftest.$ac_ext <<EOF -[#line __oline__ "configure" -#include "confdefs.h" -$1 -]EOF -if AC_TRY_EVAL(ac_compile); then - od -c conftest.o | - sed ['s/^[0-7]*[ ]*/ / - s/\*/./g - s/ \\n/*/g - s/ [0-9][0-9][0-9]/./g - s/ \\[^ ]/./g'] | - tr -d ' - ' | tr -s '*' ' -' | fold | sed '$a\ -' > conftest.dmp - $2 -ifelse($3, , , else - $3 -)dnl -fi -rm -rf conftest* -AC_LANG_RESTORE]) - -dnl Host endianness probe. -dnl Differs from AC_C_BIGENDIAN in that it does not require -dnl running a program on the host. -dnl -AC_DEFUN([fastjar_AC_COMPILE_C_BIGENDIAN], -[AC_CACHE_CHECK(byte ordering, ac_cv_c_compile_endian, -[ac_cv_c_compile_endian=unknown -gcc_AC_EXAMINE_OBJECT([ -#ifdef HAVE_LIMITS_H -# include <limits.h> -#endif -/* This structure must have no internal padding. */ - struct { - char prefix[sizeof "\nendian:" - 1]; - short word; - char postfix[2]; - } tester = { - "\nendian:", -#if SIZEOF_SHORT == 4 - ('A' << (CHAR_BIT * 3)) | ('B' << (CHAR_BIT * 2)) | -#endif - ('A' << CHAR_BIT) | 'B', - 'X', '\n' -};], - [if grep 'endian:AB' conftest.dmp >/dev/null 2>&1; then - ac_cv_c_compile_endian=big-endian - elif grep 'endian:BA' conftest.dmp >/dev/null 2>&1; then - ac_cv_c_compile_endian=little-endian - fi]) -]) -if test $ac_cv_c_compile_endian = unknown; then - AC_MSG_ERROR([*** unable to determine endianness]) -elif test $ac_cv_c_compile_endian = big-endian; then - AC_DEFINE(WORDS_BIG_ENDIAN, 1, - [Define if the host machine stores words of multi-word integers in - big-endian order.]) -fi -]) - |