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dnl -*- mode: shell-script; sh-indentation: 2; -*-
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dnl Process this file with autoconf to produce a configure script.
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AC_INIT([nettle], [1.10])
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AC_CONFIG_SRCDIR([arcfour.c])
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AM_CONFIG_HEADER([config.h])
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# Command line options
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AC_ARG_WITH(include-path,
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AC_HELP_STRING([--with-include-path], [A colon-separated list of directories to search for include files]),,
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[with_include_path=''])
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if test x$with_include_path != x ; then
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CPPFLAGS="$CPPFLAGS -I`echo $with_include_path | sed 's/:/ -I/g'`"
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AC_HELP_STRING([--with-lib-path], [A colon-separated list of directories to search for libraries]),,
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if test x$with_lib_path != x ; then
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LDFLAGS="$LDFLAGS -L`echo $with_lib_path | sed 's/:/ -L/g'`"
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AC_ARG_ENABLE(public-key,
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AC_HELP_STRING([--disable-public-key], [Disable public key algorithms]),,
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[enable_public_key=yes])
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AC_ARG_ENABLE(assembler,
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AC_HELP_STRING([--disable-assembler],[Disable assembler code]),,
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[enable_assembler=yes])
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AC_HELP_STRING([--enable-shared], [Build a shared library]),,
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LSH_RPATH_INIT([`echo $with_lib_path | sed 's/:/ /g'` \
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`echo $exec_prefix | sed "s@^NONE@$prefix/lib@g" | sed "s@^NONE@$ac_default_prefix/lib@g"` \
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/usr/local/lib /sw/local/lib /sw/lib \
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/usr/gnu/lib /opt/gnu/lib /sw/gnu/lib /usr/freeware/lib /usr/pkg/lib])
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# Checks for programs.
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# When $CC foo.c -o foo creates both foo and foo.exe, autoconf picks
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# up the foo.exe and sets exeext to .exe. That is correct for cygwin,
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# which has some kind of magic link from foo to foo.exe, but not for
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# rntcl. A better check for the cygwin case would check if the
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# contents of foo and foo.exe are equal; in the rntcl case, foo is a
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# sh script, and foo.exe is a windows executable.
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if test "x$CC" = xrntcl ; then
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AC_MSG_NOTICE([Compiling with rntcl; clearing EXEEXT])
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if test "x$am_cv_prog_cc_stdc" = xno ; then
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AC_ERROR([the C compiler doesn't handle ANSI-C])
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# Select assembler code
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[i?86*-*-* | k[5-8]*-*-* | pentium*-*-* | athlon-*-*])
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# echo "enable_assembler: $enable_assembler, asm_path: $asm_path"
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if test "x$enable_assembler" = xyes ; then
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if test -n "$asm_path"; then
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AC_MSG_NOTICE([Looking for assembler files in $asm_path/.])
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for tmp_f in aes.asm aes-encrypt.asm aes-decrypt.asm \
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arcfour-crypt.asm sha1-compress.asm machine.m4; do
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# echo "Looking for $srcdir/$asm_path/$tmp_f"
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if test -f "$srcdir/$asm_path/$tmp_f"; then
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AC_CONFIG_LINKS($tmp_f:$asm_path/$tmp_f)
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if test "$found" = no; then
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AC_MSG_WARN([No assembler files found.])
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SHLIBFORLINK=libnettle.so
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SHLIBSONAME='$(SHLIBFORLINK).$(SHLIBMAJOR)'
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SHLIBFILE='$(SHLIBSONAME).$(SHLIBMINOR)'
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SHLIBLINK='$(CC) $(LDFLAGS) -shared -Wl,-soname=$(SHLIBSONAME)'
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echo "enable_shared: $enable_shared"
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if test "x$enable_shared" = xyes ; then
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SHLIBTARGET='$(SHLIBFORLINK)'
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SHLIBINSTALL=install-shared
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AM_CONDITIONAL([ENABLE_ASSEMBLER], [test x$enable_assembler = xyes])
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AM_CONDITIONAL([ENABLE_SHARED], [test x$enable_shared = xyes])
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AC_SUBST(SHLIBCFLAGS)
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AC_SUBST(SHLIBFORLINK)
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AC_SUBST(SHLIBSONAME)
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AC_SUBST(SHLIBTARGET)
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AC_SUBST(SHLIBINSTALL)
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AC_PATH_PROG(M4, m4, m4)
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# Checks for typedefs, structures, and compiler characteristics.
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# Needed by the supplied memcmp.c
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AC_REPLACE_FUNCS(memxor)
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# According to Simon Josefsson, looking for uint32_t and friends in
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# sys/types.h is needed on some systems, in particular cygwin.
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AX_CREATE_STDINT_H([nettle-types.h], [sys/types.h])
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# Checks for libraries
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AC_CHECK_LIB(gmp, __gmpz_getlimbn,,
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[GNU MP not found, or not 3.1 or up, see http://www.swox.com/gmp.
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Support for public key algorithms will be unavailable.])]
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enable_public_key=no)
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if test "x$enable_public_key" = xyes ; then
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AC_DEFINE(WITH_PUBLIC_KEY)
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RSA_EXAMPLES='rsa-keygen$(EXEEXT) rsa-sign$(EXEEXT) rsa-verify$(EXEEXT) rsa-encrypt$(EXEEXT) rsa-decrypt$(EXEEXT)'
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AH_TEMPLATE([WITH_PUBLIC_KEY], [Define to enable public key features])
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AC_SUBST(RSA_EXAMPLES)
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# Add -R flags needed to run programs linked with gmp
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AH_TEMPLATE([HAVE_LIBCRYPTO],
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[Define if you have openssl's libcrypto (used for benchmarking)])
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# Check for openssl's libcrypto (used only for benchmarking)
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AC_CHECK_LIB(crypto, BF_ecb_encrypt,
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[AC_DEFINE(HAVE_LIBCRYPTO)
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OPENSSL_LIBFLAGS='-lcrypto'
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AC_SUBST(OPENSSL_LIBFLAGS)
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# Set these flags *last*, or else the test programs won't compile
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if test x$GCC = xyes ; then
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# Using -ggdb3 makes (some versions of) Redhat's gcc-2.96 dump core
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if "$CC" --version | grep '^2\.96$' 1>/dev/null 2>&1; then
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CFLAGS="$CFLAGS -ggdb3"
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CFLAGS="$CFLAGS -Wall -W \
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-Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes \
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-Wpointer-arith -Wbad-function-cast -Wnested-externs"
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# Don't enable -Wcast-align as it results in tons of warnings in the
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# DES code. And when using stdio.
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# Don't enable -Waggregate-return, as that causes warnings for glibc
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AC_OUTPUT(Makefile tools/Makefile testsuite/Makefile examples/Makefile config.m4)
added
removed
configure.ac
