diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 69 |
1 files changed, 50 insertions, 19 deletions
diff --git a/configure.ac b/configure.ac index 5b3e353..b5f7649 100644 --- a/configure.ac +++ b/configure.ac @@ -20,7 +20,7 @@ AC_CHECK_TOOL([PKGCONFIG], [pkg-config], [:]) AS_IF([test "x${PKGCONFIG}" = x], [ AC_MSG_ERROR([pkg-config not found]) ]) dnl check for -std=gnu99 -CFLAGS="-std=gnu99 $CFLAGS" +CFLAGS="-pedantic -Wall -std=gnu99 -D_GNU_SOURCE=1 $CFLAGS" AC_MSG_CHECKING([if ${CC} supports gnu99]) AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])], AC_MSG_RESULT([yes]), @@ -33,22 +33,27 @@ saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -mindirect-branch=thunk" AC_MSG_CHECKING([if ${CC} supports -mindirect-branch=thunk spectre mitigation]) AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])], - [ AC_MSG_RESULT([yes]) - SPECTRE_MIT="-mindirect-branch=thunk" ], - AC_MSG_RESULT([no])) -CFLAGS="$saved_CFLAGS" -AC_SUBST([SPECTRE_MIT]) + [ AC_MSG_RESULT([yes]) ], + [ AC_MSG_RESULT([no]) + CFLAGS="$saved_CFLAGS" ]) + +dnl check for -fstrict-aliasing compilter support +saved_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -fstrict-aliasing" +AC_MSG_CHECKING([if ${CC} supports -fstrict-aliasing]) +AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])], + [ AC_MSG_RESULT([yes]) ], + [ AC_MSG_RESULT([no]) + CFLAGS="$saved_CFLAGS" ]) dnl check for -fvisibility=hidden compiler support (GCC >= 4) saved_CFLAGS="$CFLAGS" -CFLAGS="$CFLAGS -fvisibility=hidden -fvisibility-inlines-hidden" -AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden -fvisibility-inlines-hidden]) +CFLAGS="$CFLAGS -fvisibility=hidden" +AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden]) AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])], - [ AC_MSG_RESULT([yes]) - SYMBOL_VISIBILITY="-fvisibility=hidden" ], - AC_MSG_RESULT([no])) -CFLAGS="$saved_CFLAGS" -AC_SUBST([SYMBOL_VISIBILITY]) + [ AC_MSG_RESULT([yes]) ], + [ AC_MSG_RESULT([no]) + CFLAGS="$saved_CFLAGS" ]) AX_PTHREAD([],[ AC_MSG_ERROR([pthread required and not found]) ]) LIBS="$PTHREAD_LIBS $LIBS" @@ -89,7 +94,15 @@ AS_IF([test "x${libcrypto_require_zlib}" = xyes], LIBS="$LIBS -lz" AC_CHECK_LIB([z], [inflate], [], [ AC_MSG_ERROR([libz not found]) ]) - AC_CHECK_LIB([crypto], [RSA_new], + AC_CHECK_LIB([crypto], [RSA_free], [ libcrypto_require_libdl="no" ], + [ libcrypto_require_libdl="yes"]) + ]) +AS_IF([test "x${libcrypto_require_libdl}" = xyes], + [ additional_libssh_libs="${additional_libssh_libs} -ldl" + LIBS="$LIBS -ldl" + AC_CHECK_LIB([dl], [dlopen], [], + [ AC_MSG_ERROR([libdl not found]) ]) + AC_CHECK_LIB([crypto], [RSA_generate_key], [], [ AC_MSG_ERROR([libcrypto not found]) ]) ]) @@ -101,10 +114,19 @@ AC_MSG_RESULT([${libssh_require_libssl}]) AS_IF([test "x${libssh_require_libssl}" = xyes], [ additional_libssh_libs="${additional_libssh_libs} -lssl" LIBS="$LIBS -lssl" - AC_CHECK_LIB([ssl], [SSL_new], [], - [AC_MSG_ERROR([libssl not found])]) + AC_CHECK_LIB([ssl], [SSL_new], [ libssl_require_libdl="no" ], + [ libssl_require_libdl="yes"]) ]) +AS_IF([test "x${libssl_require_libdl}" = xyes], + [ additional_libssh_libs="${additional_libssh_libs} -ldl" + LIBS="$LIBS -ldl" + AC_CHECK_LIB([dl], [dlopen], [], + [ AC_MSG_ERROR([libdl not found]) ]) + AC_CHECK_LIB([ssl], [SSL_free], [], + [ AC_MSG_ERROR([libssl not found]) ]) + ]) + AC_MSG_CHECKING([if libssh requires -lz]) AC_TRY_LINK([#include <libssh/libssh.h>], [ return ssh_init(); ], [ libssh_require_libz="no" ], @@ -118,7 +140,18 @@ AS_IF([test "x${libssh_require_libz}" = xyes -a "x${libcrypto_require_zlib}" != ]) LIBS="$saved_LIBS $additional_libssh_libs" -AC_CHECK_LIB([ssh], [ssh_init], [], [AC_MSG_ERROR([final link against libssh failed])]) +AC_CHECK_LIB([ssh], [ssh_init], [ libssh_require_gssapi="no" ], + [ libssh_require_gssapi="yes"]) +AS_IF([test "x${libssh_require_gssapi}" = xyes], + [ saved_LIBS="$LIBS" + LIBS="$LIBS -lgssapi" + AC_CHECK_LIB([gssapi], [gss_init_sec_context], [], + [ AC_MSG_ERROR([no usable gssapi found]) ]) + AC_CHECK_LIB([ssh], [ssh_free], + [ AC_MSG_ERROR([final link against libssh failed]) ]) + ]) + + AC_CHECK_LIB([seccomp], [seccomp_init], [], [AC_MSG_ERROR([final link against libseccomp failed])]) LIBS="$saved_LIBS $additional_libssh_libs" @@ -286,6 +319,4 @@ potd_netns_run_dir="/var/run/potd-netns" AC_DEFINE_UNQUOTED([POTD_NETNS_RUN_DIR], ["$potd_netns_run_dir"], [default path to network namespace run directory]) -CFLAGS="-pedantic -Wall -fstrict-aliasing -D_GNU_SOURCE=1 $CFLAGS" - AC_OUTPUT(Makefile src/Makefile) |