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diff --git a/hints/darwin.sh b/hints/darwin.sh
index 0a91bc083c0..fdfbdd4a3b9 100644
--- a/hints/darwin.sh
+++ b/hints/darwin.sh
@@ -301,7 +301,7 @@ case "$osvers" in # Note: osvers is the kernel version, not the 10.x
# We now use MACOSX_DEPLOYMENT_TARGET, if set, as an override by
# capturing its value and adding it to the flags.
case "$MACOSX_DEPLOYMENT_TARGET" in
- 10.*)
+ [1-9][0-9].*)
add_macosx_version_min ccflags $MACOSX_DEPLOYMENT_TARGET
add_macosx_version_min ldflags $MACOSX_DEPLOYMENT_TARGET
;;
@@ -313,7 +313,7 @@ case "$osvers" in # Note: osvers is the kernel version, not the 10.x
*** Unexpected MACOSX_DEPLOYMENT_TARGET=$MACOSX_DEPLOYMENT_TARGET
***
-*** Please either set it to 10.something, or to empty.
+*** Please either set it to a valid macOS version number (e.g., 10.15) or to empty.
EOM
exit 1
@@ -327,7 +327,7 @@ EOM
# "ProductVersion: 10.11" "10.11"
prodvers=`sw_vers|awk '/^ProductVersion:/{print $2}'|awk -F. '{print $1"."$2}'`
case "$prodvers" in
- 10.*)
+ [1-9][0-9].*)
add_macosx_version_min ccflags $prodvers
add_macosx_version_min ldflags $prodvers
;;
@@ -342,11 +342,10 @@ EOM
exit 1
esac
- # The X in 10.X
- prodvers_minor=$(echo $prodvers|awk -F. '{print $2}')
+ darwin_major=$(echo $osvers|awk -F. '{print $1}')
- # macOS (10.12) deprecated syscall().
- if [ "$prodvers_minor" -ge 12 ]; then
+ # macOS 10.12 (darwin 16.0.0) deprecated syscall().
+ if [ "$darwin_major" -ge 16 ]; then
d_syscall='undef'
# If deploying to pre-10.12, suppress Time::HiRes's detection of the system clock_gettime()
case "$MACOSX_DEPLOYMENT_TARGET" in
|