chyba: předefinování ap_hack_apr_allocator_create

Kompilace zdrojového kódu webového serveru Apache je vždy zábavná.

Je velmi vzácné, že Apache bude zkompilován při prvním spuštění na zcela novém serveru.

Faktem je, že to vyžaduje mnoho předpokladů a pokud některý z nich chybí nebo je kompatibilita verzí, možná budete muset strávit spoustu času jejich opravou.

Pracoval jsem na zcela novém serveru Linux 6.4 pro instalaci Apache 2.4.6 a narazil jsem na následující chybu.

exports.c:1929:
error: redefinition of 'ap_hack_apr_allocator_create'
exports.c:921: note: previous definition of 'ap_hack_apr_allocator_create' was here exports.c:1930:
error: redefinition of 'ap_hack_apr_allocator_destroy'
exports.c:922: note: previous definition of 'ap_hack_apr_allocator_destroy' was here exports.c:1931:
error: redefinition of 'ap_hack_apr_allocator_alloc' exports.c:923: note: previous definition of 'ap_hack_apr_allocator_alloc' was here exports.c:1932:
error: redefinition of 'ap_hack_apr_allocator_free' exports.c:924: note: previous definition of 'ap_hack_apr_allocator_free' was here exports.c:1933:
error: redefinition of 'ap_hack_apr_allocator_owner_set'
exports.c:925: note: previous definition of 'ap_hack_apr_allocator_owner_set' was here exports.c:1934:
error: redefinition of 'ap_hack_apr_allocator_owner_get' exports.c:926: note: previous definition of 'ap_hack_apr_allocator_owner_get' was here exports.c:1935:
error: redefinition of 'ap_hack_apr_allocator_max_free_set' exports.c:927: note: previous definition of 'ap_hack_apr_allocator_max_free_set' was here exports.c:1937:
error: redefinition of 'ap_hack_apr_allocator_mutex_set' exports.c:929: note: previous definition of 'ap_hack_apr_allocator_mutex_set' was here exports.c:1938:
error: redefinition of 'ap_hack_apr_allocator_mutex_get' exports.c:930: note: previous definition of 'ap_hack_apr_allocator_mutex_get' was here exports.c:1944:
error: redefinition of 'ap_hack_apr_atomic_init' exports.c:936: note: previous definition of 'ap_hack_apr_atomic_init' was here exports.c:1945:
error: redefinition of 'ap_hack_apr_atomic_read32' exports.c:937: note: previous definition of 'ap_hack_apr_atomic_read32' was here exports.c:1946:
error: redefinition of 'ap_hack_apr_atomic_set32' exports.c:938: note: previous definition of 'ap_hack_apr_atomic_set32' was here exports.c:1947:
error: redefinition of 'ap_hack_apr_atomic_add32' exports.c:939: note: previous definition of 'ap_hack_apr_atomic_add32' was here exports.c:1948:
error: redefinition of 'ap_hack_apr_atomic_sub32' exports.c:940: note: previous definition of 'ap_hack_apr_atomic_sub32' was here exports.c:1949:
error: redefinition of 'ap_hack_apr_atomic_inc32' exports.c:941: note: previous definition of 'ap_hack_apr_atomic_inc32' was here exports.c:1950:
error: redefinition of 'ap_hack_apr_atomic_dec32' exports.c:942: note: previous definition of 'ap_hack_apr_atomic_dec32' was here exports.c:1951:
error: redefinition of 'ap_hack_apr_atomic_cas32' exports.c:943: note: previous definition of 'ap_hack_apr_atomic_cas32' was here exports.c:1952:
error: redefinition of 'ap_hack_apr_atomic_xchg32' exports.c:944: note: previous definition of 'ap_hack_apr_atomic_xchg32' was here exports.c:1953:
error: redefinition of 'ap_hack_apr_atomic_casptr' exports.c:945: note: previous definition of 'ap_hack_apr_atomic_casptr' was here exports.c:1954:
error: redefinition of 'ap_hack_apr_atomic_xchgptr' exports.c:946: note: previous definition of 'ap_hack_apr_atomic_xchgptr' was here exports.c:1960:
error: redefinition of 'ap_hack_apr_dso_load' exports.c:1085: note: previous definition of 'ap_hack_apr_dso_load' was here exports.c:1961:
error: redefinition of 'ap_hack_apr_dso_unload' exports.c:1086: note: previous definition of 'ap_hack_apr_dso_unload' was here exports.c:1962:
error: redefinition of 'ap_hack_apr_dso_sym' exports.c:1087: note: previous definition of 'ap_hack_apr_dso_sym' was here exports.c:1963:
error: redefinition of 'ap_hack_apr_dso_error' exports.c:1088: note: previous definition of 'ap_hack_apr_dso_error' was here exports.c:1969:
error: redefinition of 'ap_hack_apr_env_get' exports.c:1094: note: previous definition of 'ap_hack_apr_env_get' was here exports.c:1970:
error: redefinition of 'ap_hack_apr_env_set' exports.c:1095: note: previous definition of 'ap_hack_apr_env_set' was here exports.c:1971:
error: redefinition of 'ap_hack_apr_env_delete' exports.c:1096: note: previous definition of 'ap_hack_apr_env_delete' was here exports.c:1976:
error: redefinition of 'ap_hack_apr_strerror' exports.c:1101: note: previous definition of 'ap_hack_apr_strerror' was here export.c:1981:
error: redefinition of 'ap_hack_apr_stat' exports.c:1106: note: previous definition of 'ap_hack_apr_stat' was here exports.c:1982:
error: redefinition of 'ap_hack_apr_dir_open' exports.c:1107: note: previous definition of 'ap_hack_apr_dir_open' was here exports.c:1983:
error: redefinition of 'ap_hack_apr_dir_close' exports.c:1108: note: previous definition of 'ap_hack_apr_dir_close' was here

Pokud se zobrazí podobná chyba, můžete ji opravit jako já následujícím postupem.

Řešení

Po prozkoumání různých parametrů jsem si všiml, že k tomu dochází, když máte apr-util nižší verzi než 1.4.1

• Ověřte svou verzi apr-util. Pokud najdete nižší verzi, musíte nainstalovat verzi 1.4.1 nebo vyšší
• Stáhněte si zdrojový kód apr-util z http://mirror.nus.edu.sg/apache/apr/
• Rozbalte stažený soubor

Zkompilujte a nainstalujte následovně

./configure 
make 
make install

Ve výchozím nastavení se nainstaluje do /usr/local/apr/bin/apu-1-config

Nyní můžete zkompletovat apache s nově nainstalovaným apr-utilem a mělo by to být v pořádku.

./configure --with-apr-util=/usr/local/apr/bin/apu-1-config

Pomohlo mi to a doufám, že vám také.

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