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380c16a82b96dfde2700c60938a2ffc021b33bf2
libiscsi/configure.ac
Paolo Bonzini 380c16a82b configure: add --with-libgcrypt option 
libgcrypt is a relatively large dependency that is used only for
the sake of computing MD5 in the CHAP authentication protocol.

Allow distributions to disable it forcibly and rely on the
embedded MD5 implementation.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-04-09 16:01:42 +02:00

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AC_PREREQ([2.69])
AC_INIT([libiscsi], m4_esyscmd([grep 'Version:' ./packaging/RPM/libiscsi.spec.in 2>/dev/null | head -1 | sed -e 's/[ \t]*Version:[ \t]*\([^ \t]*\)[ \t]*.*/\1/' | tr -d '\n']))
AC_CONFIG_SRCDIR([lib/init.c])
AC_CONFIG_MACRO_DIR([m4])
AM_INIT_AUTOMAKE([-Wall -Werror subdir-objects])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES])
m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
LT_INIT
AC_CANONICAL_HOST
AM_PROG_CC_C_O
enable_write_strings="yes"
case $host in
*solaris*)
enable_write_strings="no"
AC_CHECK_LIB([socket], [main], , [AC_MSG_ERROR([Can not find required library])])
AC_CHECK_LIB([nsl], [main], , [AC_MSG_ERROR([Can not find required library])])
;;
*mingw*|*msys*)
target_os_is_win32=true
;;
*)
;;
esac
AM_CONDITIONAL([TARGET_OS_IS_WIN32], [test x$target_os_is_win32 = xtrue])
AC_ARG_ENABLE([werror], [AS_HELP_STRING([--disable-werror],
[Disables building with -Werror by default])])
if test "$ac_cv_c_compiler_gnu" = yes; then
WARN_CFLAGS="-Wall -W -Wshadow -Wstrict-prototypes -Wpointer-arith -Wcast-align -Wcast-qual -Wvla"
WARN_CFLAGS="$WARN_CFLAGS -Wno-unknown-warning-option -Wno-stringop-truncation"
WARN_CFLAGS="$WARN_CFLAGS -Wno-unused-parameter"
if test "x$enable_werror" != "xno"; then
WARN_CFLAGS="$WARN_CFLAGS -Werror"
fi
if test "x$enable_write_strings" != "xno"; then
WARN_CFLAGS="$WARN_CFLAGS -Wwrite-strings"
fi
fi
AC_SUBST(WARN_CFLAGS)
AC_ARG_ENABLE([manpages],
[AS_HELP_STRING([--enable-manpages],
[Enable building the manpages])],
[ENABLE_MANPAGES=$enableval],
[ENABLE_MANPAGES="no"])
AM_CONDITIONAL(BUILD_MANPAGES,
[expr "$ENABLE_MANPAGES" : yes > /dev/null 2>&1])
AC_ARG_ENABLE([test_tool],
[AS_HELP_STRING([--enable-test-tool],
[Enable building test-tool (to test a remote server)])],
[ENABLE_TEST_TOOL=$enableval],
[ENABLE_TEST_TOOL=yes])
AM_CONDITIONAL([BUILD_TEST_TOOL],
[expr "$ENABLE_TEST_TOOL" : yes > /dev/null 2>&1])
AC_ARG_ENABLE([tests],
[AS_HELP_STRING([--enable-tests],
[Enable building tests])],
[ENABLE_TESTS=$enableval],
[ENABLE_TESTS=yes])
AM_CONDITIONAL([BUILD_TESTS],
[expr "$ENABLE_TESTS" : yes > /dev/null 2>&1])
AC_ARG_ENABLE([examples],
[AS_HELP_STRING([--enable-examples],
[Enable building examples])],
[ENABLE_EXAMPLES=$enableval],
[ENABLE_EXAMPLES=yes])
AM_CONDITIONAL([BUILD_EXAMPLES],
[expr "$ENABLE_EXAMPLES" : yes > /dev/null 2>&1])
AC_CONFIG_HEADERS([config.h])
AC_ARG_WITH([libgcrypt],
[AS_HELP_STRING([--with-libgcrypt],
[Use libgcrypt to compute MD5])],
[WITH_LIBGCRYPT=$withval],
[WITH_LIBGCRYPT=auto])
if test "$WITH_LIBGCRYPT" != no; then
AC_CHECK_LIB([gcrypt], [gcry_control])
if test "$WITH_LIBGCRYPT" = yes && test "$ac_cv_lib_gcrypt_gcry_control" != yes; then
AC_MSG_ERROR([libgcrypt not found])
fi
WITH_LIBGCRYPT=$ac_cv_lib_gcrypt_gcry_control
fi
AM_CONDITIONAL([HAVE_LIBGCRYPT],
[expr "$WITH_LIBGCRYPT" : yes > /dev/null 2>&1])
# For MinGW.
AC_CHECK_LIB([ws2_32], [gethostbyname])
AC_CHECK_HEADERS([sys/select.h])
AC_CHECK_HEADERS([winsock.h winsock2.h ws2tcpip.h],,,[#include <windows.h>])
#
# Check for the type of the fifth argument of select() since MinGW uses
# struct __ms_timeval.
#
ac_save_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -Werror"
AC_MSG_CHECKING([for the type of the fifth argument of select()])
arg_type=void
for t in "struct timeval" "struct __ms_timeval"; do
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([
#if defined(HAVE_WINSOCK2_H) && defined(HAVE_WS2TCPIP_H)
#include <winsock2.h>
#include <ws2tcpip.h>
#else
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#endif
#include <stddef.h>
], [return select(0, NULL, NULL, NULL, ($t *)NULL)])],
[arg_type=$t; break])
done
AC_MSG_RESULT(${arg_type})
AC_DEFINE_UNQUOTED([SELECT_TIMEVAL_TYPE], [${arg_type}],
[Type of the fifth argument of select()])
CFLAGS=$ac_save_CFLAGS
AC_CHECK_FUNCS([tzset])
AC_CACHE_CHECK([for sin_len in sock],libiscsi_cv_HAVE_SOCK_SIN_LEN,[
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>]],
[[struct sockaddr_in sock;
sock.sin_len = sizeof(sock);]])],
[libiscsi_cv_HAVE_SOCK_SIN_LEN=yes],[libiscsi_cv_HAVE_SOCK_SIN_LEN=no])])
if test x"$libiscsi_cv_HAVE_SOCK_SIN_LEN" = x"yes"; then
AC_DEFINE(HAVE_SOCK_SIN_LEN,1,[Whether the sockaddr_in struct has a sin_len property])
fi
AC_CACHE_CHECK([for sys filio.h],libiscsi_cv_NEED_SYS_FILIO_H,[
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdint.h>
#include <sys/filio.h>]],
[[int foo = FIONREAD]])],
[libiscsi_cv_NEED_SYS_FILIO_H=yes],[libiscsi_cv_NEED_SYS_FILIO_H=no])])
if test x"$libiscsi_cv_NEED_SYS_FILIO_H" = x"yes"; then
AC_DEFINE(NEED_SYS_FILIO_H,1,[Whether we need sys/filio.h])
fi
AC_CHECK_HEADERS(dnl
[arpa/inet.h] dnl
[netinet/in.h] dnl
[netinet/tcp.h] dnl
[poll.h] dnl
[sys/socket.h] dnl
[sys/time.h] dnl
[sys/uio.h] dnl
)
AC_CACHE_CHECK([for sockaddr_in6 support],libiscsi_cv_HAVE_SOCKADDR_IN6,[
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>]], [[struct sockaddr_in6 sock; int len = sizeof(sock);]])],[libiscsi_cv_HAVE_SOCKADDR_IN6=yes],[libiscsi_cv_HAVE_SOCKADDR_IN6=no])])
if test x"$libiscsi_cv_HAVE_SOCKADDR_IN6" = x"yes"; then
AC_DEFINE(HAVE_SOCKADDR_IN6,1,[Whether we have IPv6 support])
fi
AC_CACHE_CHECK([for SG_IO support],libiscsi_cv_HAVE_SG_IO,[
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <unistd.h>
#include <scsi/sg.h>]],
[[int sgio = SG_IO;]])],
[libiscsi_cv_HAVE_SG_IO=yes],[libiscsi_cv_HAVE_SG_IO=no])])
if test x"$libiscsi_cv_HAVE_SG_IO" = x"yes"; then
AC_DEFINE(HAVE_SG_IO,1,[Whether we have SG_IO support])
fi
AC_CACHE_CHECK([for iSER support],libiscsi_cv_HAVE_LINUX_ISER,[
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <infiniband/verbs.h>
#include <rdma/rdma_cma.h>
#include <rdma/rdma_verbs.h>]],
[[int ibv = IBV_WC_SEND;]])],
[libiscsi_cv_HAVE_LINUX_ISER=yes],[libiscsi_cv_HAVE_LINUX_ISER=no])])
if test x"$libiscsi_cv_HAVE_LINUX_ISER" = x"yes"; then
AC_DEFINE(HAVE_LINUX_ISER,1,[Whether we have iSER support])
fi
AM_CONDITIONAL([HAVE_LINUX_ISER], [test $libiscsi_cv_HAVE_LINUX_ISER = yes])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <rdma/rdma_cma.h>]], [[return RDMA_OPTION_ID_ACK_TIMEOUT;]])],[AC_DEFINE([HAVE_RDMA_ACK_TIMEOUT],[1],[Define to 1 if you have RDMA ack timeout support])],[])
AC_CACHE_CHECK([whether libcunit is available],
[ac_cv_have_cunit],
[ac_save_CFLAGS="$CFLAGS"
ac_save_LIBS="$LIBS"
CFLAGS="$CFLAGS $GLIB_CFLAGS"
LIBS="$GLIB_LIBS $LIBS -lcunit"
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <CUnit/CUnit.h>
]], [[]])],[ac_cv_have_cunit=yes],[ac_cv_have_cunit=no])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"])
if ! test "$ac_cv_have_cunit" = yes ; then
AC_MSG_NOTICE(You need libcunit to build the test suite.)
AC_MSG_NOTICE(The scsi/iscsi test suite will not be built.)
fi
AM_CONDITIONAL(ISCSITEST, [test "$ac_cv_have_cunit" = yes -a "$enable_shared" = "yes"])
AC_CHECK_MEMBER([struct timezone.tz_dsttime],
[AC_DEFINE([HAVE_TIMEZONE_TZ_DSTTIME], [1],
[Define this macro if struct timezone has tz_dsttime])], [],
[#include <sys/time.h>])
AC_CHECK_MEMBER([struct CU_SuiteInfo.pSetUpFunc],
[AC_DEFINE([HAVE_CU_SUITEINFO_PSETUPFUNC], 1,
[Define to 1 if struct CU_SuiteInfo has a member called pSetUpFunc])],
[], [[
#include <CUnit/CUnit.h>
#include <CUnit/TestDB.h>
]])
AC_SEARCH_LIBS(clock_gettime, rt, [
AC_DEFINE([HAVE_CLOCK_GETTIME],1,[Define if clock_gettime is available])])
AC_CONFIG_FILES([Makefile]
[doc/Makefile]
[examples/Makefile]
[lib/Makefile]
[test-tool/Makefile]
[tests/Makefile]
[utils/Makefile]
[libiscsi.pc])
AC_OUTPUT
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