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Use pkg-config to check for libseccomp.

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We need at list version 2.4.0 of libseccomp for seccomp-filter.c to
build cleanly.

* configure.ac: Use pkg-config to check for libseccomp.
* lib-src/Makefile.in (HAVE_LIBSECCOMP, LIBSECCOMP_LIBS)
(LIBSECCOMP_CFLAGS): New variables.
(SECCOMP_FILTER, seccomp-filter$(EXEEXT)): Use them.
This commit is contained in:
Philipp Stephani 2021-04-11 16:50:29 +02:00
parent d06c54db1b
commit 725fc96b70
2 changed files with 10 additions and 7 deletions
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9
lib-src/Makefile.in
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@ -189,10 +189,12 @@ LIB_WSOCK32=@LIB_WSOCK32@
## Extra libraries for etags
LIBS_ETAGS = $(LIB_CLOCK_GETTIME) $(LIB_GETRANDOM)
LIBSECCOMP=@LIBSECCOMP@
HAVE_LIBSECCOMP=@HAVE_LIBSECCOMP@
LIBSECCOMP_LIBS=@LIBSECCOMP_LIBS@
LIBSECCOMP_CFLAGS=@LIBSECCOMP_CFLAGS@
# Currently, we can only generate seccomp filter files for x86-64.
ifneq ($(LIBSECCOMP),)
ifeq ($(HAVE_LIBSECCOMP),yes)
ifeq ($(shell uname -m),x86_64)
SECCOMP_FILTER=1
endif
@ -419,7 +421,8 @@ emacsclient.res: ../nt/emacsclient.rc $(NTINC)/../icons/emacs.ico
ifeq ($(SECCOMP_FILTER),1)
seccomp-filter$(EXEEXT): $(srcdir)/seccomp-filter.c $(config_h)
$(AM_V_CCLD)$(CC) $(ALL_CFLAGS) $< $(LIBSECCOMP) -o $@
$(AM_V_CCLD)$(CC) $(ALL_CFLAGS) $(LIBSECCOMP_CFLAGS) $< \
$(LIBSECCOMP_LIBS) -o $@
seccomp-filter.bpf seccomp-filter.pfc: seccomp-filter$(EXEEXT)
$(AM_V_GEN)./seccomp-filter$(EXEEXT) \