From 094535c010320967639e8e86f974d878e80baa72 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Fri, 1 May 2015 16:13:57 +0200 Subject: Imported Upstream version 1.7.0 --- jpeg/configure.ac | 356 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 356 insertions(+) create mode 100644 jpeg/configure.ac (limited to 'jpeg/configure.ac') diff --git a/jpeg/configure.ac b/jpeg/configure.ac new file mode 100644 index 0000000..12293b0 --- /dev/null +++ b/jpeg/configure.ac @@ -0,0 +1,356 @@ +# IJG auto-configuration source file. +# Process this file with autoconf to produce a configure script. + +# +# Configure script for IJG libjpeg +# + +AC_INIT([libjpeg], [8.4.0]) + +# Directory where autotools helper scripts lives. +AC_CONFIG_AUX_DIR([.]) + +# Generate configuration headers. +AC_CONFIG_HEADERS([jconfig.h:jconfig.cfg]) + +# Hack: disable autoheader so that it doesn't overwrite our cfg template. +AUTOHEADER="echo autoheader ignored" + +# Check system type +AC_CANONICAL_TARGET + +# Initialize Automake +# Don't require all the GNU mandated files +AM_INIT_AUTOMAKE([-Wall -Werror -Wno-obsolete ansi2knr no-dist foreign]) + +# Make --enable-silent-rules the default. +# To get verbose build output you may configure +# with --disable-silent-rules or use "make V=1". +AM_SILENT_RULES([yes]) + +# This is required when using the de-ANSI-fication feature. +AM_C_PROTOTYPES + +# Add configure option --enable-maintainer-mode which enables +# dependency checking and generation useful to package maintainers. +# This is made an option to avoid confusing end users. +AM_MAINTAINER_MODE + +# Check for programs +AC_PROG_CC +AC_PROG_CC_STDC +AC_PROG_CPP +AC_PROG_INSTALL +AC_PROG_MAKE_SET +AC_PROG_LN_S + +# Check if LD supports linker scripts, +# and define automake conditional HAVE_LD_VERSION_SCRIPT if so. +AC_ARG_ENABLE([ld-version-script], + AS_HELP_STRING([--enable-ld-version-script], + [enable linker version script (default is enabled when possible)]), + [have_ld_version_script=$enableval], []) +if test -z "$have_ld_version_script"; then + AC_MSG_CHECKING([if LD -Wl,--version-script works]) + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map" + cat > conftest.map < rather than standard .])]) + +# See whether type size_t is defined in any ANSI-standard places; +# if not, perhaps it is defined in . +AC_MSG_CHECKING([for size_t]) +AC_TRY_COMPILE([ +#ifdef HAVE_STDDEF_H +#include +#endif +#ifdef HAVE_STDLIB_H +#include +#endif +#include +#ifdef NEED_BSD_STRINGS +#include +#else +#include +#endif +typedef size_t my_size_t; +], + [ my_size_t foovar; ], + [ijg_size_t_ok=yes], + [ijg_size_t_ok="not ANSI, perhaps it is in sys/types.h"]) +AC_MSG_RESULT([$ijg_size_t_ok]) +if test "$ijg_size_t_ok" != yes; then + AC_CHECK_HEADER([sys/types.h], + [AC_DEFINE([NEED_SYS_TYPES_H], [1], + [Need to include in order to obtain size_t.]) + AC_EGREP_CPP([size_t], [#include ], + [ijg_size_t_ok="size_t is in sys/types.h"], + [ijg_size_t_ok=no])], + [ijg_size_t_ok=no]) + AC_MSG_RESULT([$ijg_size_t_ok]) + if test "$ijg_size_t_ok" = no; then + AC_MSG_WARN([Type size_t is not defined in any of the usual places. + Try putting '"typedef unsigned int size_t;"' in jconfig.h.]) + fi +fi + +# Check compiler characteristics +AC_MSG_CHECKING([for type unsigned char]) +AC_TRY_COMPILE([], [ unsigned char un_char; ], + [AC_MSG_RESULT(yes) + AC_DEFINE([HAVE_UNSIGNED_CHAR], [1], + [Compiler supports 'unsigned char'.])], + [AC_MSG_RESULT(no)]) + +AC_MSG_CHECKING([for type unsigned short]) +AC_TRY_COMPILE([], [ unsigned short un_short; ], + [AC_MSG_RESULT(yes) + AC_DEFINE([HAVE_UNSIGNED_SHORT], [1], + [Compiler supports 'unsigned short'.])], + [AC_MSG_RESULT(no)]) + +AC_MSG_CHECKING([for type void]) +AC_TRY_COMPILE([ +/* Caution: a C++ compiler will insist on valid prototypes */ +typedef void * void_ptr; /* check void * */ +#ifdef HAVE_PROTOTYPES /* check ptr to function returning void */ +typedef void (*void_func) (int a, int b); +#else +typedef void (*void_func) (); +#endif + +#ifdef HAVE_PROTOTYPES /* check void function result */ +void test3function (void_ptr arg1, void_func arg2) +#else +void test3function (arg1, arg2) + void_ptr arg1; + void_func arg2; +#endif +{ + char * locptr = (char *) arg1; /* check casting to and from void * */ + arg1 = (void *) locptr; + (*arg2) (1, 2); /* check call of fcn returning void */ +} +], [ ], + [AC_MSG_RESULT(yes)], + [AC_MSG_RESULT(no) + AC_DEFINE([void], [char], + [Define 'void' as 'char' for archaic compilers + that don't understand it.])]) +AC_C_CONST + +# Check for non-broken inline under various spellings +AC_MSG_CHECKING([for inline]) +ijg_cv_inline="" +AC_TRY_COMPILE([], [} __inline__ int foo() { return 0; } +int bar() { return foo();], ijg_cv_inline="__inline__", +[AC_TRY_COMPILE(, [} __inline int foo() { return 0; } +int bar() { return foo();], ijg_cv_inline="__inline", +[AC_TRY_COMPILE(, [} inline int foo() { return 0; } +int bar() { return foo();], ijg_cv_inline="inline")])]) +AC_MSG_RESULT($ijg_cv_inline) +AC_DEFINE_UNQUOTED([INLINE], [$ijg_cv_inline], + [How to obtain function inlining.]) + +# We cannot check for bogus warnings, but at least we can check for errors +AC_MSG_CHECKING([for broken incomplete types]) +AC_TRY_COMPILE([ typedef struct undefined_structure * undef_struct_ptr; ], + [], + [AC_MSG_RESULT(ok)], + [AC_MSG_RESULT(broken) + AC_DEFINE([INCOMPLETE_TYPES_BROKEN], [1], + [Compiler does not support pointers to unspecified + structures.])]) + +# Test whether global names are unique to at least 15 chars +AC_MSG_CHECKING([for short external names]) +AC_TRY_LINK([ +int possibly_duplicate_function () { return 0; } +int possibly_dupli_function () { return 1; } +], [], + [AC_MSG_RESULT(ok)], + [AC_MSG_RESULT(short) + AC_DEFINE([NEED_SHORT_EXTERNAL_NAMES], [1], + [Linker requires that global names be unique in + first 15 characters.])]) + +# Run-time checks +AC_MSG_CHECKING([to see if char is signed]) +AC_TRY_RUN([ +#ifdef HAVE_PROTOTYPES +int is_char_signed (int arg) +#else +int is_char_signed (arg) + int arg; +#endif +{ + if (arg == 189) { /* expected result for unsigned char */ + return 0; /* type char is unsigned */ + } + else if (arg != -67) { /* expected result for signed char */ + printf("Hmm, it seems 'char' is not eight bits wide on your machine.\n"); + printf("I fear the JPEG software will not work at all.\n\n"); + } + return 1; /* assume char is signed otherwise */ +} +char signed_char_check = (char) (-67); +int main() { + exit(is_char_signed((int) signed_char_check)); +}], [AC_MSG_RESULT(no) + AC_DEFINE([CHAR_IS_UNSIGNED], [1], + [Characters are unsigned])], + [AC_MSG_RESULT(yes)], +[AC_MSG_WARN([Assuming that char is signed on target machine. + If it is unsigned, this will be a little bit inefficient.]) +]) + +AC_MSG_CHECKING([to see if right shift is signed]) +AC_TRY_RUN([ +#ifdef HAVE_PROTOTYPES +int is_shifting_signed (long arg) +#else +int is_shifting_signed (arg) + long arg; +#endif +/* See whether right-shift on a long is signed or not. */ +{ + long res = arg >> 4; + + if (res == -0x7F7E80CL) { /* expected result for signed shift */ + return 1; /* right shift is signed */ + } + /* see if unsigned-shift hack will fix it. */ + /* we can't just test exact value since it depends on width of long... */ + res |= (~0L) << (32-4); + if (res == -0x7F7E80CL) { /* expected result now? */ + return 0; /* right shift is unsigned */ + } + printf("Right shift isn't acting as I expect it to.\n"); + printf("I fear the JPEG software will not work at all.\n\n"); + return 0; /* try it with unsigned anyway */ +} +int main() { + exit(is_shifting_signed(-0x7F7E80B1L)); +}], + [AC_MSG_RESULT(no) + AC_DEFINE([RIGHT_SHIFT_IS_UNSIGNED], [1], + [Broken compiler shifts signed values as an unsigned shift.])], + [AC_MSG_RESULT(yes)], + [AC_MSG_RESULT(Assuming that right shift is signed on target machine.)]) + +AC_MSG_CHECKING([to see if fopen accepts b spec]) +AC_TRY_RUN([ +#include +int main() { + if (fopen("conftestdata", "wb") != NULL) + exit(0); + exit(1); +}], + [AC_MSG_RESULT(yes)], + [AC_MSG_RESULT(no) + AC_DEFINE([DONT_USE_B_MODE], [1], + [Don't open files in binary mode.])], + [AC_MSG_RESULT(Assuming that it does.)]) + +# Configure libtool +AC_LIBTOOL_WIN32_DLL +AC_PROG_LIBTOOL + +# Select memory manager depending on user input. +# If no "-enable-maxmem", use jmemnobs +MEMORYMGR='jmemnobs' +MAXMEM="no" +AC_ARG_ENABLE([maxmem], +[ --enable-maxmem[=N] enable use of temp files, set max mem usage to N MB], +[MAXMEM="$enableval"]) +dnl [# support --with-maxmem for backwards compatibility with IJG V5.] +dnl AC_ARG_WITH(maxmem, , MAXMEM="$withval") +if test "x$MAXMEM" = xyes; then + MAXMEM=1 +fi +if test "x$MAXMEM" != xno; then + if test -n "`echo $MAXMEM | sed 's/[[0-9]]//g'`"; then + AC_MSG_ERROR(non-numeric argument to --enable-maxmem) + fi + DEFAULTMAXMEM=`expr $MAXMEM \* 1048576` + AC_DEFINE_UNQUOTED([DEFAULT_MAX_MEM], [${DEFAULTMAXMEM}], + [Maximum data space library will allocate.]) + AC_MSG_CHECKING([for 'tmpfile()']) + AC_TRY_LINK([#include ], [ FILE * tfile = tmpfile(); ], + [AC_MSG_RESULT(yes) + MEMORYMGR='jmemansi'], + [AC_MSG_RESULT(no) + dnl if tmpfile is not present, must use jmemname. + MEMORYMGR='jmemname' + + # Test for the need to remove temporary files using a signal handler + # (for cjpeg/djpeg) + AC_DEFINE([NEED_SIGNAL_CATCHER], [1], + [Need signal handler to clean up temporary files.]) + AC_MSG_CHECKING([for 'mktemp()']) + AC_TRY_LINK([], [ char fname[80]; mktemp(fname); ], + [AC_MSG_RESULT(yes)], + [AC_MSG_RESULT(no) + AC_DEFINE([NO_MKTEMP], [1], + [The mktemp() function is not available.])])]) +fi +AC_SUBST([MEMORYMGR]) + +# Extract the library version IDs from jpeglib.h. +AC_MSG_CHECKING([libjpeg version number]) +[major=`sed -ne 's/^#define JPEG_LIB_VERSION_MAJOR *\([0-9][0-9]*\).*$/\1/p' $srcdir/jpeglib.h` +minor=`sed -ne 's/^#define JPEG_LIB_VERSION_MINOR *\([0-9][0-9]*\).*$/\1/p' $srcdir/jpeglib.h`] +AC_SUBST([JPEG_LIB_VERSION], + [`expr $major + $minor`:0:$minor]) +AC_MSG_RESULT([$JPEG_LIB_VERSION]) + +AC_CONFIG_FILES([Makefile]) +AC_OUTPUT -- cgit v1.2.3