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gh-156115: Use the simulator deployment-target flag for iOS simulator builds #156116

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gh-156115: Use the simulator deployment-target flag for iOS simulator builds #156116

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4 changes: 4 additions & 0 deletions Misc/NEWS.d/next/Build/2026-08-20-14-02-33.gh-issue-156115.KXr8wU.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,4 @@
iOS simulator builds are now configured with
``-mios-simulator-version-min`` instead of the device's
``-mios-version-min``. The device flag made the linker reject libraries
resolved from the simulator SDK, so library detection silently failed.
11 changes: 9 additions & 2 deletions configure
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9 changes: 7 additions & 2 deletions configure.ac
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Original file line number Diff line number Diff line change
Expand Up @@ -1008,8 +1008,13 @@ AS_CASE([$host],
dnl Add the compiler flag for the iOS minimum supported OS version.
AS_CASE([$ac_sys_system],
[iOS], [
AS_VAR_APPEND([CFLAGS], [" -mios-version-min=${IPHONEOS_DEPLOYMENT_TARGET}"])
AS_VAR_APPEND([LDFLAGS], [" -mios-version-min=${IPHONEOS_DEPLOYMENT_TARGET}"])
dnl -mios-version-min names the device platform; against the simulator SDK it
dnl makes the linker reject every dylib it resolves there.
AS_IF([test "x$_host_device" = "xsimulator"],
[_ios_version_min_flag=-mios-simulator-version-min],
[_ios_version_min_flag=-mios-version-min])
AS_VAR_APPEND([CFLAGS], [" ${_ios_version_min_flag}=${IPHONEOS_DEPLOYMENT_TARGET}"])
AS_VAR_APPEND([LDFLAGS], [" ${_ios_version_min_flag}=${IPHONEOS_DEPLOYMENT_TARGET}"])
],
)

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