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build: disable -Wtype-limits, except in the test suite

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The current implementation of lib/intprops.h results in "unsigned < 0"
comparisons, which triggers warnings.  See

https://lists.gnu.org/archive/html/bug-bison/2019-10/msg00061.html

* configure.ac (warn_common): Disable -Wtype-limits.
(warn_tests): Restore it.
This commit is contained in:
Akim Demaille
2019-10-20 08:55:44 +02:00
parent 54c5d5d1b4
commit e31f92495c
1 changed files with 3 additions and 2 deletions
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5
configure.ac
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@@ -94,9 +94,10 @@ AC_ARG_ENABLE([gcc-warnings],
[enable_gcc_warnings=no]) [enable_gcc_warnings=no])
AM_CONDITIONAL([ENABLE_GCC_WARNINGS], [test "$enable_gcc_warnings" = yes]) AM_CONDITIONAL([ENABLE_GCC_WARNINGS], [test "$enable_gcc_warnings" = yes])
if test "$enable_gcc_warnings" = yes; then if test "$enable_gcc_warnings" = yes; then
warn_common='-Wall -Wextra -Wno-sign-compare -Wcast-align warn_common='-Wall -Wextra -Wcast-align
-fparse-all-comments -Wdocumentation -fparse-all-comments -Wdocumentation
-Wformat -Wimplicit-fallthrough -Wnull-dereference -Wformat -Wimplicit-fallthrough -Wnull-dereference
-Wno-sign-compare -Wno-type-limits
-Wpointer-arith -Wshadow -Wpointer-arith -Wshadow
-Wwrite-strings' -Wwrite-strings'
warn_c='-Wbad-function-cast -Wstrict-prototypes' warn_c='-Wbad-function-cast -Wstrict-prototypes'
@@ -111,7 +112,7 @@ if test "$enable_gcc_warnings" = yes; then
# trick in the test suite to check some private implementation # trick in the test suite to check some private implementation
# details for lalr1.cc. # details for lalr1.cc.
warn_tests='-Wundef -pedantic -Wconversion warn_tests='-Wundef -pedantic -Wconversion
-Wdeprecated -Wsign-compare -Wsign-conversion -Wdeprecated -Wsign-compare -Wsign-conversion -Wtype-limits
-fno-color-diagnostics -fno-color-diagnostics
-Wno-keyword-macro' -Wno-keyword-macro'