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gh-157695: Fix acospi() detection in configure.ac #157948

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vstinner merged 1 commit into from
Sep 22, 2026
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gh-157695: Fix acospi() detection in configure.ac #157948

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gh-157695: Fix acospi() detection in configure.ac 
Include <math.h> to check for acospi() and similar functions.
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@vstinner
vstinner committed Sep 22, 2026
commit 2e33f24c68bb37edddfee3a6484081f3f70f8cff
14 changes: 7 additions & 7 deletions configure
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14 changes: 7 additions & 7 deletions configure.ac
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Original file line number Diff line number Diff line change
Expand Up @@ -6555,13 +6555,13 @@ AC_CHECK_FUNCS(
[AC_MSG_ERROR([Python requires C99 compatible libm])]
)

PY_CHECK_FUNC_PRIVATE([acospi])
PY_CHECK_FUNC_PRIVATE([asinpi])
PY_CHECK_FUNC_PRIVATE([atanpi])
PY_CHECK_FUNC_PRIVATE([atan2pi])
PY_CHECK_FUNC_PRIVATE([cospi])
PY_CHECK_FUNC_PRIVATE([sinpi])
PY_CHECK_FUNC_PRIVATE([tanpi])
PY_CHECK_FUNC_PRIVATE([acospi], [@%:@include <math.h>])
PY_CHECK_FUNC_PRIVATE([asinpi], [@%:@include <math.h>])
PY_CHECK_FUNC_PRIVATE([atanpi], [@%:@include <math.h>])
PY_CHECK_FUNC_PRIVATE([atan2pi], [@%:@include <math.h>])
PY_CHECK_FUNC_PRIVATE([cospi], [@%:@include <math.h>])
PY_CHECK_FUNC_PRIVATE([sinpi], [@%:@include <math.h>])
PY_CHECK_FUNC_PRIVATE([tanpi], [@%:@include <math.h>])
LIBS=$LIBS_SAVE

dnl For multiprocessing module, check that sem_open
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