tinysvm: add explicit --build flag for linux arm build

[chenrui333]

  config.guess timestamp = 2001-04-20
  
  uname -m = aarch64
  uname -r = 6.8.0-1021-azure
  uname -s = Linux
  uname -v = #25~22.04.1-Ubuntu SMP Thu Jan 16 21:09:47 UTC 2025
  
  /usr/bin/uname -p = aarch64
  /bin/uname -X     = 
  
  hostinfo               = 
  /bin/universe          = 
  /usr/bin/arch -k       = 
  /bin/arch              = aarch64
  /usr/bin/oslevel       = 
  /usr/convex/getsysinfo = 
  
  UNAME_MACHINE = aarch64
  UNAME_RELEASE = 6.8.0-1021-azure
  UNAME_SYSTEM  = Linux
  UNAME_VERSION = #25~22.04.1-Ubuntu SMP Thu Jan 16 21:09:47 UTC 2025
  configure: error: can not guess host type; you must specify one

---

#211761

[chenrui333]

still seeing some build issue

==> ./configure --mandir=/home/linuxbrew/.linuxbrew/Cellar/tinysvm/0.09/share/man --disable-shared --build=aarch64-unknown-linux-gnu --disable-debug --disable-dependency-tracking --prefix=/home/linuxbrew/.linuxbrew/Cellar/tinysvm/0.09 --libdir=/home/linuxbrew/.linuxbrew/Cellar/tinysvm/0.09/lib
creating cache ./config.cache
checking for a BSD compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking whether make sets ${MAKE}... yes
checking for working aclocal... found
checking for working autoconf... found
checking for working automake... found
checking for working autoheader... found
checking for working makeinfo... found
checking for gcc... gcc-14
checking whether the C compiler (gcc-14  ) works... no
configure: error: installation or configuration problem: C compiler cannot create executables.
/usr/bin/env /home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/shims/shared/curl --version
/usr/bin/env /usr/bin/ruby -e puts\ RUBY_VERSION