f6be6cd82b
...so that with Clang 15 trunk after <7d644e1215> "[C11/C2x] Change the behavior of the implicit function declaration warning" the check now failed to compile with > configure:21471: checking alignment of long [...] > conftest.c:177:3: error: call to undeclared library function 'exit' with type 'void (int) __attribute__((noreturn))'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] > exit((int)&((struct s*)1024)->b - 1024); > ^ > conftest.c:177:3: note: include the header <stdlib.h> or explicitly provide a declaration for 'exit' and an exit code of 1 from the compiler invocation, which the check than silently mistook as an alignment requirement of 1. (Which then caused the somewhat obscure fallout of > workdir/UnpackedTarball/firebird/src/gpre/msc.cpp:463:10: runtime error: member access within misaligned address 0x7f59d8e68196 for type 'gpre_sym', which requires 8 byte alignment while building ExternalProject_firebird with UBSan.) The corresponding "checking alignment of double" a few lines further down had already been modified inccd0e5f445"Make firebird build for macOS on arm64", but without stating what actual problem (if any) it fixed. I thus moved that patch into the new external/firebird/configure-include.patch too, to have them grouped together. (An alternative fix could be to replace the use of exit with return from main in those configure checks.) Change-Id: Iefa02a06d45c83add5f56fad5d726aaecee6d815 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/133368 Tested-by: Jenkins Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
18 lines
359 B
Diff
18 lines
359 B
Diff
--- configure
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+++ configure
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@@ -21478,6 +21478,7 @@
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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+#include <stdlib.h>
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#include <semaphore.h>
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main () {
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struct s {
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@@ -21514,6 +21515,7 @@
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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+#include <stdlib.h>
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main () {
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struct s {
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char a;
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