Some errors to deal with: httpd-2.4.29 will be delayed:
/opt/build-1/libtool --silent --mode=compile xlc_r -qHALT=E -U__STR__ -D_THREAD_SAFE -D_USE_IRS -D_LARGEFILE64_SOURCE -I. -I/data/prj/apache/httpd/httpd-2.4.29/include -I/data/prj/apache/httpd/src/httpd-2.4.29/os/unix -I/data/prj/apache/httpd/src/httpd-2.4.29/include -I/opt/include/apr-1 -I/opt/include -DPCRE_STATIC -I/data/prj/apache/httpd/src/httpd-2.4.29/modules/aaa -I/data/prj/apache/httpd/src/httpd-2.4.29/modules/cache -I/data/prj/apache/httpd/src/httpd-2.4.29/modules/core -I/data/prj/apache/httpd/src/httpd-2.4.29/modules/database -I/data/prj/apache/httpd/src/httpd-2.4.29/modules/filters -I/data/prj/apache/httpd/src/httpd-2.4.29/modules/ldap -I/data/prj/apache/httpd/src/httpd-2.4.29/modules/loggers -I/data/prj/apache/httpd/src/httpd-2.4.29/modules/lua -I/data/prj/apache/httpd/src/httpd-2.4.29/modules/proxy -I/data/prj/apache/httpd/src/httpd-2.4.29/modules/session -I/data/prj/apache/httpd/src/httpd-2.4.29/modules/ssl -I/data/prj/apache/httpd/src/httpd-2.4.29/modules/test -I/data/prj/apache/httpd/src/httpd-2.4.29/server -I/data/prj/apache/httpd/src/httpd-2.4.29/modules/arch/unix -I/data/prj/apache/httpd/src/httpd-2.4.29/modules/dav/main -I/data/prj/apache/httpd/src/httpd-2.4.29/modules/generators -I/data/prj/apache/httpd/src/httpd-2.4.29/modules/mappers -prefer-pic -c /data/prj/apache/httpd/src/httpd-2.4.29/modules/proxy/balancers/mod_lbmethod_byrequests.c && touch mod_lbmethod_byrequests.slo
"/data/prj/apache/httpd/src/httpd-2.4.29/modules/proxy/balancers/mod_lbmethod_byrequests.c", line 88.17: 1506-275 (S) Unexpected text ')' encountered.
"/data/prj/apache/httpd/src/httpd-2.4.29/modules/proxy/balancers/mod_lbmethod_byrequests.c", line 88.17: 1506-045 (S) Undeclared identifier apr_OFN_ap_proxy_retry_worker_t.
"/data/prj/apache/httpd/src/httpd-2.4.29/modules/proxy/balancers/mod_lbmethod_byrequests.c", line 88.64: 1506-277 (S) Syntax error: possible missing ')' or ','?
"/data/prj/apache/httpd/src/httpd-2.4.29/modules/proxy/balancers/mod_lbmethod_byrequests.c", line 96.18: 1506-276 (S) Syntax error: possible missing ')'?
"/data/prj/apache/httpd/src/httpd-2.4.29/modules/proxy/balancers/mod_lbmethod_byrequests.c", line 95.64: 1506-280 (W) Function argument assignment between types "const char*" and "int" is not allowed.
"/data/prj/apache/httpd/src/httpd-2.4.29/modules/proxy/balancers/mod_lbmethod_byrequests.c", line 142.69: 1506-260 (S) Octal integer constant 01208 is not valid.
"/data/prj/apache/httpd/src/httpd-2.4.29/modules/proxy/balancers/mod_lbmethod_byrequests.c", line 143.22: 1506-276 (S) Syntax error: possible missing ')'?
"/data/prj/apache/httpd/src/httpd-2.4.29/modules/proxy/balancers/mod_lbmethod_byrequests.c", line 142.68: 1506-280 (W) Function argument assignment between types "const char*" and "int" is not allowed.
"/data/prj/apache/httpd/src/httpd-2.4.29/modules/proxy/balancers/mod_lbmethod_byrequests.c", line 179.5: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members.
"/data/prj/apache/httpd/src/httpd-2.4.29/modules/proxy/balancers/mod_lbmethod_byrequests.c", line 180.5: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members.
"/data/prj/apache/httpd/src/httpd-2.4.29/modules/proxy/balancers/mod_lbmethod_byrequests.c", line 181.5: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members.
"/data/prj/apache/httpd/src/httpd-2.4.29/modules/proxy/balancers/mod_lbmethod_byrequests.c", line 193.1: 1506-273 (E) Missing type in declaration of AP_DECLARE_MODULE.
"/data/prj/apache/httpd/src/httpd-2.4.29/modules/proxy/balancers/mod_lbmethod_byrequests.c", line 193.1: 1506-282 (S) The type of the parameters must be specified in a prototype.
"/data/prj/apache/httpd/src/httpd-2.4.29/modules/proxy/balancers/mod_lbmethod_byrequests.c", line 193.40: 1506-512 (S) An initializer is not allowed for "AP_DECLARE_MODULE".