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BUILD: makefile: fix PCRE overriding specific lib path

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PCRE relies on pcre-config binary tool to provide includes/libs paths.
This may generate standard entries such as '/usr/lib' which will
override more specific ones if present before them on the linking step.

This situation was encountered when building with both QuicTLS and PCRE.
This generates a linking error as the default SSL libraries were used
for linking even with correct SSL flags pointing to QuicTLS dirs.

To fix this issue, USE_PCRE and its affiliated options have been moved
at the end of 'use_opts' variable. Indeed, related CFLAGS/LDFLAGS are
concatenated in their order of appearance through the macro
collect_opts_flags (see include/make/options.mk). PCRE in the last
position ensures it won't override specific entries declared before.
This commit is contained in:
Amaury Denoyelle 2023-02-03 09:23:56 +01:00
parent 5e7ecbec99
commit 565e3cc43a
1 changed files with 10 additions and 4 deletions
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14
Makefile
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@ -296,10 +296,14 @@ LDFLAGS = $(ARCH_FLAGS) -g
#### list of all "USE_*" options. These ones must be updated if new options are
# added, so that the relevant options are properly added to the CFLAGS and to
# the reported build options.
use_opts = USE_EPOLL USE_KQUEUE USE_NETFILTER \
USE_PCRE USE_PCRE_JIT USE_PCRE2 USE_PCRE2_JIT USE_POLL \
#
# Relevant *_CFLAGS/*_LDFLAGS will be concatenated in the order defined here.
# Note that PCRE last position is advisable as it relies on pcre configuration
# detection tool which may generate default include/lib paths overriding more
# specific entries if present before them.
use_opts = USE_EPOLL USE_KQUEUE USE_NETFILTER USE_POLL \
USE_THREAD USE_PTHREAD_EMULATION USE_BACKTRACE \
USE_STATIC_PCRE USE_STATIC_PCRE2 USE_TPROXY USE_LINUX_TPROXY \
USE_TPROXY USE_LINUX_TPROXY \
USE_LINUX_SPLICE USE_LIBCRYPT USE_CRYPT_H USE_ENGINE \
USE_GETADDRINFO USE_OPENSSL USE_OPENSSL_WOLFSSL USE_SSL USE_LUA \
USE_ACCEPT4 USE_CLOSEFROM USE_ZLIB USE_SLZ USE_CPU_AFFINITY \
@ -307,7 +311,9 @@ use_opts = USE_EPOLL USE_KQUEUE USE_NETFILTER \
USE_DEVICEATLAS USE_51DEGREES \
USE_WURFL USE_SYSTEMD USE_OBSOLETE_LINKER USE_PRCTL USE_PROCCTL \
USE_THREAD_DUMP USE_EVPORTS USE_OT USE_QUIC USE_PROMEX \
USE_MEMORY_PROFILING USE_SHM_OPEN
USE_MEMORY_PROFILING USE_SHM_OPEN \
USE_STATIC_PCRE USE_STATIC_PCRE2 \
USE_PCRE USE_PCRE_JIT USE_PCRE2 USE_PCRE2_JIT
# preset all variables for all supported build options among use_opts
$(reset_opts_vars)