kewlbear / x264-ios

Script to build x264 for iOS apps

x264 iOS build script

See https://github.com/kewlbear/FFmpeg-iOS for integration with FFmpeg and more.

This is a shell script to build x264 for iOS apps.

Tested with:

• x264-snapshot-20160814-2245-stable
• Xcode 9.2

Usage

• Untar the source code into a folder named x264

• To build everything:

    ./build-x264.sh
  

• To build for arm64:

    ./build-x264.sh arm64
  

• To build fat library for armv7 and x86_64 (64-bit simulator):

    ./build-x264.sh armv7 x86_64
  

• To build fat library from separately built thin libraries:

    ./build-x264.sh lipo
  

• Library and Header Files are in ./x264-iOS

x264-ios's Issues

arm64 not compile

Hello.

When I compile with the command

./build-x264.sh arm64

I get

<stdin>:952:27: error: expected integer shift amount
    subs w4, w4, w3, lsr #shiftw
                          ^
<stdin>:966:27: error: expected integer shift amount
    subs w4, w4, w3, lsr #shiftw
                          ^
<stdin>:999:27: error: expected integer shift amount
    subs w4, w4, w3, lsr #shiftw
                          ^
<stdin>:1013:27: error: expected integer shift amount
    subs w4, w4, w3, lsr #shiftw
                          ^
<stdin>:1044:27: error: expected integer shift amount
    subs w4, w4, w3, lsr #shiftw
                          ^
<stdin>:1058:27: error: expected integer shift amount
    subs w4, w4, w3, lsr #shiftw
                          ^
make: *** [common/aarch64/quant-a.o] Error 1

You have successfully compiled under arm64?

the x264-ios folder is empty

when i copy the gas-preprocessor.pl to /usr/local/bin/
and ./build-x264.sh

the x264-os folder is empty nothing in it

last version libx264 convert fail

I use last version x264 in last version ffmpeg to convert gif to mp4,but always fail,before open zombie object it stop in "error: memory read failed for 0x0" eventually ,seems like occur nil pointer,but it is work when I use the same version ffmpeg but another encoder like mepg4,so it may not the problem of ffmpeg,and it work I use the same version ffmpeg and x264 in OSX.
can you teach how to fix it?thanks

need to instal gpac for this to work

xcrun -sdk iphoneos clang conftest.c -Wall -I. -I$(SRCPATH) -arch arm64 -fembed-bitcode -mios-version-min=7.0 -std=gnu99 -lgpac_static -lz -arch arm64 -fembed-bitcode -mios-version-min=7.0 -lm -lpthread -o conftest
conftest.c:1:10: fatal error: 'gpac/isomedia.h' file not found

include <gpac/isomedia.h>

     ^

1 error generated.

Build error with ffmpeg, x264 and arm64

Hello,

I have some troubles with ffmpeg's build and arm64 architecture.

Here is the config.log when i run ./build-ffmpeg.sh:

  "_x264_add16x16_idct8_neon", referenced from:
      _x264_dct_init in libx264.a(dct.o)
  "_x264_add16x16_idct_dc_neon", referenced from:
      _x264_dct_init in libx264.a(dct.o)
  "_x264_add16x16_idct_neon", referenced from:
      _x264_dct_init in libx264.a(dct.o)
  "_x264_add4x4_idct_neon", referenced from:
      _x264_dct_init in libx264.a(dct.o)
  "_x264_add8x8_idct8_neon", referenced from:
      _x264_dct_init in libx264.a(dct.o)
  "_x264_add8x8_idct_dc_neon", referenced from:
      _x264_dct_init in libx264.a(dct.o)
  "_x264_add8x8_idct_neon", referenced from:
      _x264_dct_init in libx264.a(dct.o)
  "_x264_cabac_encode_bypass_asm", referenced from:
      _x264_cabac_block_residual_c in libx264.a(cabac.o)
      _x264_cabac_block_residual_422_dc in libx264.a(cabac.o)
      _x264_cabac_mvd in libx264.a(cabac.o)
  "_x264_cabac_encode_decision_asm", referenced from:
      _x264_cabac_mb_skip in libx264.a(cabac.o)
      _x264_cabac_block_residual_c in libx264.a(cabac.o)
      _x264_macroblock_write_cabac in libx264.a(cabac.o)
      _x264_cabac_block_residual_422_dc in libx264.a(cabac.o)
      _x264_cabac_ref_p in libx264.a(cabac.o)
      _x264_cabac_mvd in libx264.a(cabac.o)
      _x264_cabac_ref_b in libx264.a(cabac.o)
      ...
  "_x264_cabac_encode_terminal_asm", referenced from:
      _x264_slice_write in libx264.a(encoder.o)
      _x264_cabac_mb_type_intra in libx264.a(cabac.o)
  "_x264_coeff_last15_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_coeff_last16_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_coeff_last4_aarch64", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_coeff_last64_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_coeff_last8_aarch64", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_coeff_level_run15_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_coeff_level_run16_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_coeff_level_run4_aarch64", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_coeff_level_run8_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_dct4x4dc_neon", referenced from:
      _x264_dct_init in libx264.a(dct.o)
  "_x264_deblock_h_chroma_422_intra_neon", referenced from:
      _x264_deblock_init in libx264.a(deblock.o)
  "_x264_deblock_h_chroma_422_neon", referenced from:
      _x264_deblock_init in libx264.a(deblock.o)
  "_x264_deblock_h_chroma_intra_mbaff_neon", referenced from:
      _x264_deblock_init in libx264.a(deblock.o)
  "_x264_deblock_h_chroma_intra_neon", referenced from:
      _x264_deblock_init in libx264.a(deblock.o)
  "_x264_deblock_h_chroma_mbaff_neon", referenced from:
      _x264_deblock_init in libx264.a(deblock.o)
  "_x264_deblock_h_chroma_neon", referenced from:
      _x264_deblock_init in libx264.a(deblock.o)
  "_x264_deblock_h_luma_intra_neon", referenced from:
      _x264_deblock_init in libx264.a(deblock.o)
  "_x264_deblock_h_luma_neon", referenced from:
      _x264_deblock_init in libx264.a(deblock.o)
  "_x264_deblock_strength_neon", referenced from:
      _x264_deblock_init in libx264.a(deblock.o)
  "_x264_deblock_v_chroma_intra_neon", referenced from:
      _x264_deblock_init in libx264.a(deblock.o)
  "_x264_deblock_v_chroma_neon", referenced from:
      _x264_deblock_init in libx264.a(deblock.o)
  "_x264_deblock_v_luma_intra_neon", referenced from:
      _x264_deblock_init in libx264.a(deblock.o)
  "_x264_deblock_v_luma_neon", referenced from:
      _x264_deblock_init in libx264.a(deblock.o)
  "_x264_decimate_score15_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_decimate_score16_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_decimate_score64_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_denoise_dct_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_dequant_4x4_dc_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_dequant_4x4_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_dequant_8x8_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_idct4x4dc_neon", referenced from:
      _x264_dct_init in libx264.a(dct.o)
  "_x264_mc_init_aarch64", referenced from:
      _x264_mc_init in libx264.a(mc.o)
  "_x264_nal_escape_neon", referenced from:
      _x264_bitstream_init in libx264.a(bitstream.o)
  "_x264_pixel_asd8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_hadamard_ac_16x16_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_hadamard_ac_16x8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_hadamard_ac_8x16_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_hadamard_ac_8x8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sa8d_16x16_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sa8d_8x8_neon", referenced from:
      _x264_intra_sa8d_x3_8x8_neon in libx264.a(pixel.o)
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sa8d_satd_16x16_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_16x16_neon", referenced from:
      _x264_intra_sad_x3_16x16_neon in libx264.a(pixel.o)
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_16x8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_4x16_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_4x4_neon", referenced from:
      _x264_intra_sad_x3_4x4_neon in libx264.a(pixel.o)
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_4x8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_8x16_neon", referenced from:
      _x264_intra_sad_x3_8x16c_neon in libx264.a(pixel.o)
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_8x4_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_8x8_neon", referenced from:
      _x264_intra_sad_x3_8x8_neon in libx264.a(pixel.o)
      _x264_intra_sad_x3_8x8c_neon in libx264.a(pixel.o)
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_x3_16x16_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_x3_16x8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_x3_4x4_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_x3_4x8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_x3_8x16_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_x3_8x4_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_x3_8x8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_x4_16x16_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_x4_16x8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_x4_4x4_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_x4_4x8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_x4_8x16_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_x4_8x4_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_sad_x4_8x8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_satd_16x16_neon", referenced from:
      _x264_intra_satd_x3_16x16_neon in libx264.a(pixel.o)
      _x264_pixel_init in libx264.a(pixel.o)
      _x264_pixel_satd_x3_16x16_neon in libx264.a(pixel.o)
      _x264_pixel_satd_x4_16x16_neon in libx264.a(pixel.o)
  "_x264_pixel_satd_16x8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
      _x264_pixel_satd_x3_16x8_neon in libx264.a(pixel.o)
      _x264_pixel_satd_x4_16x8_neon in libx264.a(pixel.o)
  "_x264_pixel_satd_4x16_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_satd_4x4_neon", referenced from:
      _x264_intra_satd_x3_4x4_neon in libx264.a(pixel.o)
      _x264_pixel_init in libx264.a(pixel.o)
      _x264_pixel_satd_x3_4x4_neon in libx264.a(pixel.o)
      _x264_pixel_satd_x4_4x4_neon in libx264.a(pixel.o)
  "_x264_pixel_satd_4x8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
      _x264_pixel_satd_x3_4x8_neon in libx264.a(pixel.o)
      _x264_pixel_satd_x4_4x8_neon in libx264.a(pixel.o)
  "_x264_pixel_satd_8x16_neon", referenced from:
      _x264_intra_satd_x3_8x16c_neon in libx264.a(pixel.o)
      _x264_pixel_init in libx264.a(pixel.o)
      _x264_pixel_satd_x3_8x16_neon in libx264.a(pixel.o)
      _x264_pixel_satd_x4_8x16_neon in libx264.a(pixel.o)
  "_x264_pixel_satd_8x4_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
      _x264_pixel_satd_x3_8x4_neon in libx264.a(pixel.o)
      _x264_pixel_satd_x4_8x4_neon in libx264.a(pixel.o)
  "_x264_pixel_satd_8x8_neon", referenced from:
      _x264_intra_satd_x3_8x8c_neon in libx264.a(pixel.o)
      _x264_pixel_init in libx264.a(pixel.o)
      _x264_pixel_satd_x3_8x8_neon in libx264.a(pixel.o)
      _x264_pixel_satd_x4_8x8_neon in libx264.a(pixel.o)
  "_x264_pixel_ssd_16x16_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_ssd_16x8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_ssd_4x16_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_ssd_4x4_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_ssd_4x8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_ssd_8x16_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_ssd_8x4_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_ssd_8x8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_ssd_nv12_core_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_ssim_4x4x2_core_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_ssim_end4_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_var2_8x16_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_var2_8x8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_var_16x16_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_var_8x16_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_var_8x8_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_pixel_vsad_neon", referenced from:
      _x264_pixel_init in libx264.a(pixel.o)
  "_x264_predict_16x16_dc_neon", referenced from:
      _x264_intra_sad_x3_16x16_neon in libx264.a(pixel.o)
      _x264_intra_satd_x3_16x16_neon in libx264.a(pixel.o)
  "_x264_predict_16x16_h_neon", referenced from:
      _x264_intra_sad_x3_16x16_neon in libx264.a(pixel.o)
      _x264_intra_satd_x3_16x16_neon in libx264.a(pixel.o)
  "_x264_predict_16x16_init_aarch64", referenced from:
      _x264_predict_16x16_init in libx264.a(predict.o)
  "_x264_predict_16x16_v_neon", referenced from:
      _x264_intra_sad_x3_16x16_neon in libx264.a(pixel.o)
      _x264_intra_satd_x3_16x16_neon in libx264.a(pixel.o)
  "_x264_predict_4x4_dc_neon", referenced from:
      _x264_intra_sad_x3_4x4_neon in libx264.a(pixel.o)
      _x264_intra_satd_x3_4x4_neon in libx264.a(pixel.o)
  "_x264_predict_4x4_h_aarch64", referenced from:
      _x264_intra_sad_x3_4x4_neon in libx264.a(pixel.o)
      _x264_intra_satd_x3_4x4_neon in libx264.a(pixel.o)
  "_x264_predict_4x4_init_aarch64", referenced from:
      _x264_predict_4x4_init in libx264.a(predict.o)
  "_x264_predict_4x4_v_aarch64", referenced from:
      _x264_intra_sad_x3_4x4_neon in libx264.a(pixel.o)
      _x264_intra_satd_x3_4x4_neon in libx264.a(pixel.o)
  "_x264_predict_8x16c_dc_neon", referenced from:
      _x264_intra_sad_x3_8x16c_neon in libx264.a(pixel.o)
      _x264_intra_satd_x3_8x16c_neon in libx264.a(pixel.o)
  "_x264_predict_8x16c_h_neon", referenced from:
      _x264_intra_sad_x3_8x16c_neon in libx264.a(pixel.o)
      _x264_intra_satd_x3_8x16c_neon in libx264.a(pixel.o)
  "_x264_predict_8x16c_init_aarch64", referenced from:
      _x264_predict_8x16c_init in libx264.a(predict.o)
  "_x264_predict_8x16c_v_neon", referenced from:
      _x264_intra_sad_x3_8x16c_neon in libx264.a(pixel.o)
      _x264_intra_satd_x3_8x16c_neon in libx264.a(pixel.o)
  "_x264_predict_8x8_dc_neon", referenced from:
      _x264_intra_sad_x3_8x8_neon in libx264.a(pixel.o)
      _x264_intra_sa8d_x3_8x8_neon in libx264.a(pixel.o)
  "_x264_predict_8x8_h_neon", referenced from:
      _x264_intra_sad_x3_8x8_neon in libx264.a(pixel.o)
      _x264_intra_sa8d_x3_8x8_neon in libx264.a(pixel.o)
  "_x264_predict_8x8_init_aarch64", referenced from:
      _x264_predict_8x8_init in libx264.a(predict.o)
  "_x264_predict_8x8_v_neon", referenced from:
      _x264_intra_sad_x3_8x8_neon in libx264.a(pixel.o)
      _x264_intra_sa8d_x3_8x8_neon in libx264.a(pixel.o)
  "_x264_predict_8x8c_dc_neon", referenced from:
      _x264_intra_sad_x3_8x8c_neon in libx264.a(pixel.o)
      _x264_intra_satd_x3_8x8c_neon in libx264.a(pixel.o)
  "_x264_predict_8x8c_h_neon", referenced from:
      _x264_intra_sad_x3_8x8c_neon in libx264.a(pixel.o)
      _x264_intra_satd_x3_8x8c_neon in libx264.a(pixel.o)
  "_x264_predict_8x8c_init_aarch64", referenced from:
      _x264_predict_8x8c_init in libx264.a(predict.o)
  "_x264_predict_8x8c_v_aarch64", referenced from:
      _x264_intra_sad_x3_8x8c_neon in libx264.a(pixel.o)
      _x264_intra_satd_x3_8x8c_neon in libx264.a(pixel.o)
  "_x264_quant_2x2_dc_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_quant_4x4_dc_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_quant_4x4_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_quant_4x4x4_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_quant_8x8_neon", referenced from:
      _x264_quant_init in libx264.a(quant.o)
  "_x264_sub16x16_dct8_neon", referenced from:
      _x264_dct_init in libx264.a(dct.o)
  "_x264_sub16x16_dct_neon", referenced from:
      _x264_dct_init in libx264.a(dct.o)
  "_x264_sub4x4_dct_neon", referenced from:
      _x264_dct_init in libx264.a(dct.o)
  "_x264_sub8x16_dct_dc_neon", referenced from:
      _x264_dct_init in libx264.a(dct.o)
  "_x264_sub8x8_dct8_neon", referenced from:
      _x264_dct_init in libx264.a(dct.o)
  "_x264_sub8x8_dct_dc_neon", referenced from:
      _x264_dct_init in libx264.a(dct.o)
  "_x264_sub8x8_dct_neon", referenced from:
      _x264_dct_init in libx264.a(dct.o)
  "_x264_zigzag_interleave_8x8_cavlc_neon", referenced from:
      _x264_zigzag_init in libx264.a(dct.o)
  "_x264_zigzag_scan_4x4_field_neon", referenced from:
      _x264_zigzag_init in libx264.a(dct.o)
  "_x264_zigzag_scan_4x4_frame_neon", referenced from:
      _x264_zigzag_init in libx264.a(dct.o)
  "_x264_zigzag_scan_8x8_field_neon", referenced from:
      _x264_zigzag_init in libx264.a(dct.o)
  "_x264_zigzag_scan_8x8_frame_neon", referenced from:
      _x264_zigzag_init in libx264.a(dct.o)
  "_x264_zigzag_sub_4x4_field_neon", referenced from:
      _x264_zigzag_init in libx264.a(dct.o)
  "_x264_zigzag_sub_4x4_frame_neon", referenced from:
      _x264_zigzag_init in libx264.a(dct.o)
  "_x264_zigzag_sub_4x4ac_field_neon", referenced from:
      _x264_zigzag_init in libx264.a(dct.o)
  "_x264_zigzag_sub_4x4ac_frame_neon", referenced from:
      _x264_zigzag_init in libx264.a(dct.o)
  "_x264_zigzag_sub_8x8_field_neon", referenced from:
      _x264_zigzag_init in libx264.a(dct.o)
  "_x264_zigzag_sub_8x8_frame_neon", referenced from:
      _x264_zigzag_init in libx264.a(dct.o)
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
ERROR: libx264 not found

I use both last version of FFmpeg-iOS-build-script & x264-ios & x264

It builds successfully if:

• x264 is disabled.
• x264 is enabled and arm64 removed from compiled archs.

Do you know how i can fix it ?

Thank you very much,

Yann

i386 No working C compiler found

There is a error when i compile with i386: No working C compiler found.
config.log :
checking for -Werror=unknown-warning-option... no
Failed commandline was:

xcrun -sdk iphonesimulator clang conftest.c -Wall -I. -I$(SRCPATH) -arch i386 -mios-simulator-version-min=5.0 -Werror=unknown-warning-option -arch i386 -mios-simulator-version-min=5.0 -o conftest
Undefined symbols for architecture i386:
"start", referenced from:
implicit entry/start for main executable
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Failed program was:

int main (void) { return 0; }

x264 configure script
Command line options: "--enable-static" "--enable-pic" "--disable-cli" "--host=i386-apple-darwin" "--extra-cflags=-arch" "i386" "-mios-simulator-version-min=5.0" "--extra-asflags=" "--extra-ldflags=-arch" "i386" "-mios-simulator-version-min=5.0" "--prefix=/Users/xxx/ffmpeg/ios/x264/thin-x264/i386"

checking whether xcrun -sdk iphonesimulator clang works... no
Failed commandline was:

xcrun -sdk iphonesimulator clang conftest.c -m32 -Wall -I. -I$(SRCPATH) -arch i386 -mios-simulator-version-min=5.0 -march=i686 -mfpmath=sse -msse -msse2 -m32 -arch i386 -mios-simulator-version-min=5.0 -lm -o conftest
Undefined symbols for architecture i386:
"start", referenced from:
implicit entry/start for main executable
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Failed program was:

int main (void) { return 0; }

DIED: No working C compiler found.

Environment:
Mac 10.14.6
XCode 10.2.1

/Users/mac/Desktop/.../x264/configure: No such file or director

how to complied for ffmpeg with bitcode?

when I build ffmpeg library with x264 ,it displayed "ERROR: libx264 not found",can you help me to resolve this problem？

armv7s not support.

if add armv7s :

ARCHS="armv7s arm64 x86_64 i386 armv7"

clang: error: cannot use 'dependencies' output with multiple -arch options
make: *** [.depend] Error 1

not working