FreeBSD-elf can do threads. However, there seems to be confusion if

you should defined _THREAD_SAFE (I found that in an include file, and
that's what everybody tells me) or _THREADSAFE (that's what the gcc
manual says in the FreeBSD-specific section), so I defined both, just
to be safe.

diff --git a/Configure b/Configure
index 3f6d3add8721977acdb4a4c0e231de018e7bb8ef..3ea55dfaceebbf48a15cbc137d1af9fbcaa48616 100755 (executable)
--- a/Configure
+++ b/Configure
@@ -301,7 +301,7 @@ my %table=(
 "NetBSD-sparc",        "gcc:-DTERMIOS -O3 -fomit-frame-pointer -mv8 -Wall -DB_ENDIAN::(unknown)::BN_LLONG MD2_CHAR RC4_INDEX DES_UNROLL::::::::::dlfcn:bsd-gcc-shared:-fPIC:.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
 "NetBSD-m68",  "gcc:-DTERMIOS -O3 -fomit-frame-pointer -Wall -DB_ENDIAN::(unknown)::BN_LLONG MD2_CHAR RC4_INDEX DES_UNROLL::::::::::dlfcn:bsd-gcc-shared:-fPIC:.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
 "NetBSD-x86",  "gcc:-DTERMIOS -O3 -fomit-frame-pointer -m486 -Wall::(unknown)::BN_LLONG ${x86_gcc_des} ${x86_gcc_opts}::::::::::dlfcn:bsd-gcc-shared:-fPIC:.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
-"FreeBSD-elf",  "gcc:-DTERMIOS -DL_ENDIAN -fomit-frame-pointer -O3 -m486 -Wall::(unknown)::BN_LLONG ${x86_gcc_des} ${x86_gcc_opts}:${x86_elf_asm}:dlfcn:bsd-gcc-shared:-fPIC:.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+"FreeBSD-elf",  "gcc:-DTERMIOS -DL_ENDIAN -fomit-frame-pointer -O3 -m486 -Wall::-pthread -D_REENTRANT -D_THREAD_SAFE -D_THREADSAFE::BN_LLONG ${x86_gcc_des} ${x86_gcc_opts}:${x86_elf_asm}:dlfcn:bsd-gcc-shared:-fPIC:.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
 "FreeBSD",      "gcc:-DTERMIOS -DL_ENDIAN -fomit-frame-pointer -O3 -m486 -Wall::(unknown)::BN_LLONG ${x86_gcc_des} ${x86_gcc_opts}:${x86_out_asm}",
 "bsdi-gcc",     "gcc:-O3 -ffast-math -DL_ENDIAN -DPERL5 -m486::(unknown)::RSA_LLONG ${x86_gcc_des} ${x86_gcc_opts}:${x86_bsdi_asm}",
 "bsdi-elf-gcc",     "gcc:-DPERL5 -DL_ENDIAN -fomit-frame-pointer -O3 -m486 -Wall::(unknown)::BN_LLONG ${x86_gcc_des} ${x86_gcc_opts}:${x86_elf_asm}:dlfcn:bsd-gcc-shared:-fPIC:.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",