compile secp256k1 error.

./build_secp256k1_ios.sh
Cloning into 'secp256k1_ios'...
remote: Enumerating objects: 2615, done.
remote: Total 2615 (delta 0), reused 0 (delta 0), pack-reused 2615
Receiving objects: 100% (2615/2615), 1.10 MiB | 260.00 KiB/s, done.
Resolving deltas: 100% (1865/1865), done.
make: *** No rule to make target `distclean'. Stop.
building thin libraries...
[arm64] building...
/Volumes/T7Touch/github/crypto/bitshares-mobile-app/shell/secp256k1_ios/configure: line 1: syntax error near unexpected token `('
/Volumes/T7Touch/github/crypto/bitshares-mobile-app/shell/secp256k1_ios/configure: line 1: `m4trace:configure.ac:2: -1- AC_INIT([libsecp256k1], [0.1])'
make: *** No rule to make target `install'. Stop.
[armv7s] building...
/Volumes/T7Touch/github/crypto/bitshares-mobile-app/shell/secp256k1_ios/configure: line 1: syntax error near unexpected token `('
/Volumes/T7Touch/github/crypto/bitshares-mobile-app/shell/secp256k1_ios/configure: line 1: `m4trace:configure.ac:2: -1- AC_INIT([libsecp256k1], [0.1])'
make: *** No rule to make target `install'. Stop.
[x86_64] building...
/Volumes/T7Touch/github/crypto/bitshares-mobile-app/shell/secp256k1_ios/configure: line 1: syntax error near unexpected token `('
/Volumes/T7Touch/github/crypto/bitshares-mobile-app/shell/secp256k1_ios/configure: line 1: `m4trace:configure.ac:2: -1- AC_INIT([libsecp256k1], [0.1])'
make: *** No rule to make target `install'. Stop.
[i386] building...
/Volumes/T7Touch/github/crypto/bitshares-mobile-app/shell/secp256k1_ios/configure: line 1: syntax error near unexpected token `('
/Volumes/T7Touch/github/crypto/bitshares-mobile-app/shell/secp256k1_ios/configure: line 1: `m4trace:configure.ac:2: -1- AC_INIT([libsecp256k1], [0.1])'
make: *** No rule to make target `install'. Stop.
[armv7] building...
/Volumes/T7Touch/github/crypto/bitshares-mobile-app/shell/secp256k1_ios/configure: line 1: syntax error near unexpected token `('
/Volumes/T7Touch/github/crypto/bitshares-mobile-app/shell/secp256k1_ios/configure: line 1: `m4trace:configure.ac:2: -1- AC_INIT([libsecp256k1], [0.1])'
make: *** No rule to make target `install'. Stop.
building fat binaries...
./build_secp256k1_ios.sh: line 86: cd: /Volumes/T7Touch/github/crypto/bitshares-mobile-app/shell/secp256k1_ios/btspp_output/thin-libs/arm64/lib: No such file or directory
error: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/lipo: no input files specified
usage: lipo [ ...]
command is one of:
-archs
-create [-arch_blank ]
-detailed_info
-extract [-extract ...]
-extract_family [-extract_family ...]
-info
-remove [-remove ...]
-replace [-replace ...]
-thin
-verify_arch ...
options are one or more of:
-arch
-hideARM64
-output
-segalign
cp: /Volumes/T7Touch/github/crypto/bitshares-mobile-app/shell/secp256k1_ios/btspp_output/thin-libs/arm64/include: No such file or directory
done. target dir: secp256k1_ios/btspp_output/fat-libs

how to fix it? thank you.

Start with build_secp256k1_ios.sh and the generated secp256k1_ios/configure file, then reproduce the make and configure failures shown in the issue. Check why configure begins with m4trace output and why the expected thin-libs directories are absent; done means the script completes for the listed architectures and produces the requested fat libraries and headers.

Written by the indexing model from the issue text.