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Update CTF's ctf_dict_t detection

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As ctf_dict_t can be an opaque type depending on the version of
ctf-api.h, using AC_CHECK_TYPE won't work to detect it because that
macro invokes sizeof(ctf_dict_t).

With this change, we don't require that ctf_dict_t be fully defined.

	* configure.ac: Use AC_COMPILE_IFELSE to try and compile a code
	snippet that doesn't need that ctf_dict_t be fully defined.

Signed-off-by: Dodji Seketeli <dodji@redhat.com>
This commit is contained in:
Dodji Seketeli 2023-01-13 16:29:19 +01:00
parent 554fea5e87
commit bea35c9800
1 changed files with 6 additions and 5 deletions
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11
configure.ac
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@ -334,11 +334,12 @@ if test x$ENABLE_CTF != xno; then
fi
if test x$LIBCTF = xyes; then
dnl Test if struct btf_enum64 is present.
AC_CHECK_TYPE([struct ctf_dict_t],
[HAVE_CTF_DICT_T=yes],
[HAVE_CTF_DICT_T=no],
[#include <ctf-api.h>])
dnl Test if struct struct ctf_dict_t is present.
AC_LANG(C++)
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#include <ctf-api.h>
ctf_dict_t* c;]])],
[HAVE_CTF_DICT_T=yes],
[HAVE_CTF_DICT_T=no])
if test x$HAVE_CTF_DICT_T = xyes; then
AC_DEFINE([HAVE_CTF_DICT_T], 1, [struct ctf_dict_t is present])