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Port check for --default-symver to autoconf #666

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Port check for --default-symver to autoconf #666

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10 changes: 9 additions & 1 deletion configure.ac
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,9 @@ AC_TYPE_UINT16_T
AC_TYPE_UINT8_T
AC_TYPE_LONG_LONG_INT

jansson_soversion="4"
AC_SUBST([jansson_soversion])

AC_C_INLINE
case $ac_cv_c_inline in
yes) json_inline=inline;;
Expand Down Expand Up @@ -138,8 +141,12 @@ AS_IF([test "x$with_Bsymbolic" = "xyes"], [JSON_BSYMBOLIC_LDFLAGS=-Wl[,]-Bsymbol
AC_SUBST(JSON_BSYMBOLIC_LDFLAGS)

# Enable symbol versioning on GNU libc
m4_pattern_forbid([^AX_CHECK_LINK_FLAG$])
JSON_SYMVER_LDFLAGS=
AC_CHECK_DECL([__GLIBC__], [JSON_SYMVER_LDFLAGS=-Wl,--default-symver])
AC_CHECK_DECL([__GLIBC__],
[AX_CHECK_LINK_FLAG([-Wl,--default-symver],
[JSON_SYMVER_LDFLAGS=-Wl,--default-symver],
[JSON_SYMVER_LDFLAGS=-Wl,--version-script,$ac_abs_confdir/jansson.sym])])
AC_SUBST([JSON_SYMVER_LDFLAGS])

AC_ARG_ENABLE([ossfuzzers],
Expand Down Expand Up @@ -168,6 +175,7 @@ AC_SUBST([AM_CFLAGS])

AC_CONFIG_FILES([
jansson.pc
jansson.sym
Makefile
doc/Makefile
src/Makefile
Expand Down
5 changes: 5 additions & 0 deletions jansson.sym.in
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
JANSSON_@jansson_soversion@ {
global:
*;
};