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7fbc7708d4
HAProxy is documented to support gcc >= 3.4 as per INSTALL file, however
hlua.c makes use of c11 only loop initial declarations leading to build
failure when using gcc-4.9.4:
x86_64-unknown-linux-gnu-gcc -Iinclude -Wchar-subscripts -Wcomment -Wformat -Winit-self -Wmain -Wmissing-braces -Wno-pragmas -Wparentheses -Wreturn-type -Wsequence-point -Wstrict-aliasing -Wswitch -Wtrigraphs -Wuninitialized -Wunknown-pragmas -Wunused-label -Wunused-variable -Wunused-value -Wpointer-sign -Wimplicit -pthread -fdiagnostics-color=auto -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -O3 -msse -mfpmath=sse -march=core2 -g -fPIC -g -Wall -Wextra -Wundef -Wdeclaration-after-statement -fwrapv -Wno-unused-label -Wno-sign-compare -Wno-unused-parameter -Wno-clobbered -Wno-missing-field-initializers -Wtype-limits -DUSE_EPOLL -DUSE_NETFILTER -DUSE_PCRE2 -DUSE_PCRE2_JIT -DUSE_POLL -DUSE_THREAD -DUSE_BACKTRACE -DUSE_TPROXY -DUSE_LINUX_TPROXY -DUSE_LINUX_SPLICE -DUSE_LIBCRYPT -DUSE_CRYPT_H -DUSE_GETADDRINFO -DUSE_OPENSSL -DUSE_LUA -DUSE_ACCEPT4 -DUSE_SLZ -DUSE_CPU_AFFINITY -DUSE_TFO -DUSE_NS -DUSE_DL -DUSE_RT -DUSE_PRCTL -DUSE_THREAD_DUMP -DUSE_PCRE2 -DPCRE2_CODE_UNIT_WIDTH=8 -I/usr/local/include -DCONFIG_HAPROXY_VERSION=\"2.5.0\" -DCONFIG_HAPROXY_DATE=\"2021/11/23\" -c -o src/connection.o src/connection.c
src/hlua.c: In function 'hlua_config_prepend_path':
src/hlua.c:11292:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (size_t i = 0; i < 2; i++) {
^
src/hlua.c:11292:2: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
This commit moves loop iterator to an explicit declaration.
Must be backported to 2.5 because this issue was introduced in
v2.5-dev10~69 with commit 9e5e586e35c5 ("BUG/MINOR: lua: Fix lua error
handling in `hlua_config_prepend_path()`")
The HAProxy documentation has been split into a number of different files for ease of use. Please refer to the following files depending on what you're looking for : - INSTALL for instructions on how to build and install HAProxy - BRANCHES to understand the project's life cycle and what version to use - LICENSE for the project's license - CONTRIBUTING for the process to follow to submit contributions The more detailed documentation is located into the doc/ directory : - doc/intro.txt for a quick introduction on HAProxy - doc/configuration.txt for the configuration's reference manual - doc/lua.txt for the Lua's reference manual - doc/SPOE.txt for how to use the SPOE engine - doc/network-namespaces.txt for how to use network namespaces under Linux - doc/management.txt for the management guide - doc/regression-testing.txt for how to use the regression testing suite - doc/peers.txt for the peers protocol reference - doc/coding-style.txt for how to adopt HAProxy's coding style - doc/internals for developer-specific documentation (not all up to date)