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check_expr2: fix cross-compile/hardening issues

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When building check_expr2 with ASLR PIE hardening enabled the linker
fails. This is resolved by adding the regular compiler flags when
building the object files from ast_expr2f.c and ast_expr2.c.

Note: The STANDALONE define is removed because it is already defined in
_ASTCFLAGS. YY_NO_INPUT is defined so that the compile survives
'--enable-dev-mode'.

Also, a Makefile variable "CROSS_COMPILING" is added so that the
build system doesn't try to run check_expr2 when cross-compiling,
because that will fail the build as will.

ASTERISK-28685 #close

Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>
Change-Id: If435b7db9f9ad8266245bda51c81c220f9658915
This commit is contained in:
Sebastian Kemper
2020-01-12 12:37:46 +01:00
committed by George Joseph
parent 9617e530b6
commit 06e8d5ad8e
5 changed files with 58 additions and 73 deletions
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2
configure.ac
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@@ -230,6 +230,8 @@ then
AC_CHECK_TOOL(CXX, g++, :)
AC_CHECK_TOOL(LD, ld, :)
AC_CHECK_TOOL(RANLIB, ranlib, :)
CROSS_COMPILING=1
AC_SUBST(CROSS_COMPILING)
fi
# Checks for programs.