Script Fails With Configure Error

[Stunner]

This is what I get on 2 separate machines running 10.12.16 one running Xcode 9 and the other running Xcode 8.3.3:

$ ./build-libopus.sh 
Downloading opus-1.1.3.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   453  100   453    0     0   2189      0 --:--:-- --:--:-- --:--:--  2199
100   435  100   435    0     0   1125      0 --:--:-- --:--:-- --:--:--  6126
100  955k  100  955k    0     0  1101k      0 --:--:-- --:--:-- --:--:-- 1101k
Using opus-1.1.3.tar.gz
Building without ccache
checking whether make supports nested variables... yes
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for x86_64-apple-darwin-strip... no
checking for strip... strip
checking for a thread-safe mkdir -p... ./install-sh -c -d
checking for gawk... no
checking for mawk... no
checking for nawk... no
checking for awk... awk
checking whether make sets $(MAKE)... yes
checking whether to enable maintainer-specific portions of Makefiles... yes
checking build system type... x86_64-apple-darwin16.7.0
checking host system type... x86_64-apple-darwin
checking how to print strings... printf
checking for style of include used by make... GNU
checking for x86_64-apple-darwin-gcc... no
checking for gcc... gcc
checking whether the C compiler works... no
configure: error: in `/Users/aaron/Downloads/Opus-iOS-master/build/src/opus-1.1.3':
configure: error: C compiler cannot create executables
See `config.log' for more details
$ open -e config.log
The file /Users/aaron/Downloads/Opus-iOS-master/config.log does not exist.
$

[alwayskim]

I have this issue too, my problem is the SDKVERSION not equal to my ios sdk version. After modify the SDKVERSION, script works fun.

VERSION="1.2.1"
SDKVERSION="10.3"
MINIOSVERSION="8.0"

[tiana890]

@alwayskim, thank you - it helped me)

[iamir4g]

last Update:
VERSION="1.2.1"
SDKVERSION="11.3"
MINIOSVERSION="8.0"

[lawlietop123]

@iamir4g sorry How's the latest version now?

[tethridge]

In case anybody comes across this and wonders what sdk version that they should use, you can use xcodebuild to find out.
In my case below, I would set 17.2 if building for iOS.

`% xcodebuild -showsdks
DriverKit SDKs:
DriverKit 23.2 -sdk driverkit23.2

iOS SDKs:
iOS 17.2 -sdk iphoneos17.2

iOS Simulator SDKs:
Simulator - iOS 17.2 -sdk iphonesimulator17.2

macOS SDKs:
macOS 14.2 -sdk macosx14.2
macOS 14.2 -sdk macosx14.2

tvOS SDKs:
tvOS 17.2 -sdk appletvos17.2

tvOS Simulator SDKs:
Simulator - tvOS 17.2 -sdk appletvsimulator17.2

visionOS SDKs:
visionOS 1.0 -sdk xros1.0

visionOS Simulator SDKs:
Simulator - visionOS 1.0 -sdk xrsimulator1.0

watchOS SDKs:
watchOS 10.2 -sdk watchos10.2

watchOS Simulator SDKs:
Simulator - watchOS 10.2 -sdk watchsimulator10.2`